Sound Class 9 Easiest Full Chapter in One-Shot Explanation | 2022-23 | PRanay Chouhan | Just Padhle
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- เผยแพร่เมื่อ 23 ม.ค. 2023
- Sound Class 9 Easiest Full Chapter in One-Shot Explanation | 2022-23 | PRanay Chouhan | Just Padhle
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Kaisi lagi aavaz ki aavaz, meri aavaz mein? 😍
Maja aaya aur yahi maja mein apne har dost ko dena chahta hun
Your are very close 400k
Gjb ki 👍
Very nice And good advisor
Ek number gazab ki aavaz
3:12 What is sound
4:15 Wave motion
6:39 Vibrational motion
9:03 Particle vs wave motion
9:25 Types of waves : mechanical and non mechanical
11:07 Longitudinal and transverse
12:43 Production of sound
15:34 Propagation of sound
29:43 Sound needs a medium to travel
31:10 Continue Propagation of sound
34:20 General characteristics of Wave : Wavelength
36:54 Frequency
39:32 Time period
40:55 Amplitude
42:48 General characteristics of wave : Pitch
43:27 Loudness
43:45 Intensity
44:34 Timber
45:21 Tone and note
50:03 Relation between time period and frequency
50:56 What is the speed of sound
54:53 Reflection of sound
55:59 Echo and Reverberation
01:04:36 Ex 12.2
01:04:47 Uses of Reflection
01:05:41 Range of hearing : Infrasound and Ultrasound
01:09:07 Application of ultrasound
01:09:44 Question
01:10:39 One min revision
01:10:55 The end.....
Edit: Thanks for 2k likes❤
Next Target like: 2.5k😅
Edit: Sab apne exam phod Dena😉
Nice ☺️
thznks
Thanks
Thank you bro ❤
you are the god's man
EXAMS ARE NEAR
NOTHING IS CLEAR
BUT NO NEED TO FEAR
PRANAY BHAIYA IS HERE
Short be ❤❤
Wahawa wahawa
👀
🔥🔥🔥
@@firegamerz819Hy
🎯 Key Takeaways for quick navigation:
00:18 🎶 *Sound is crucial; understanding its basics is essential for this chapter.*
02:18 📚 *Some details are omitted in this explanation for simplicity, ensuring the core concepts are understood.*
03:31 💡 *Sound is a form of energy that produces sensation in hearing; understanding its nature is vital.*
04:26 🌊 *Sound is a type of wave motion, different from particle motion, and understanding these distinctions is key.*
05:08 🔍 *Three types of motion are discussed: translational, rotational, and vibrational.*
05:23 🔄 *Vibrations and oscillations are crucial concepts in wave motion.*
06:35 🗣️ *Sound is essentially a form of vibration, where particles oscillate but do not displace significantly.*
07:31 🔊 *Sound is produced when objects collide, causing vibrations to propagate.*
08:16 📈 *Vibrations or wave motion progress through collisions, propagating further with each collision.*
08:46 🔊 *Particle motion and vibration energy transfer explanation.*
09:29 🌊 *Explanation of wave motion and types of waves.*
09:55 🔍 *Explanation of mechanical and non-mechanical waves and the role of medium.*
11:08 🌐 *Introduction to longitudinal wave transfer.*
11:51 ⬅️ *Understanding of wave vibration direction and propagation.*
13:47 🔊 *Vibrations resulting from collision lead to sound production, demonstrating the essential role of collision in creating sound.*
14:15 🔊 *Wave energy is produced through vibrations, illustrating the connection between vibrations and wave energy.*
15:23 🔊 *Sound production requires collision, emphasizing the necessity of collision for sound production to occur.*
16:05 🗣️ *Sound can travel through various mediums such as air, solid, liquid, or gas.*
16:32 🎚️ *Sound requires a medium for transmission, which could be solid, liquid, or gas.*
17:00 🔊 *Understanding the concept of medium in sound transmission is crucial, whether it's solid, liquid, or gas.*
17:43 🎙️ *The source of sound determines where sound originates, with particles vibrating and transmitting energy.*
18:36 🚗 *Sound propagation concepts lay the foundation for more complex topics in sound physics.*
19:32 🔊 *Sound travels through compression and rarefaction of particles in a medium.*
20:00 🔄 *Compression refers to particles being pushed closer together, while rarefaction is when they spread apart.*
20:45 🤔 *Compression and rarefaction are essential for sound waves to propagate.*
23:19 ⚡ *Collision between particles illustrates compression and subsequent rarefaction, crucial for sound transmission.*
24:42 📈 *Pressure variations in sound waves affect particle distribution.*
25:09 🎯 *Sound production involves compression followed by rarefaction.*
26:20 📊 *Graphing sound waves involves plotting compression and rarefaction.*
29:07 📉 *Graphs are drawn to represent compression and rarefaction in sound waves, aiding visualization of the wave's behavior.*
30:28 🔇 *Creating a vacuum inside a jar eliminates air particles, resulting in silence, demonstrating the necessity of a medium for sound transmission.*
30:58 🔊 *Sound travels faster in denser mediums due to particles being closer together.*
31:11 🌊 *Sound travels through different mediums by causing vibration in particles.*
31:37 ⚡ *Energy transfer occurs more efficiently when particles are closely packed.*
32:07 🌀 *Sound speed varies in different mediums due to particle spacing.*
32:34 🌐 *Characteristics of sound waves include wavelength, frequency, time period, and amplitude.*
33:30 📐 *Pressure and density change as sound waves propagate, affecting their characteristics.*
33:58 ⬆️ *Crest represents high pressure while trough represents low pressure in sound waves.*
34:13 📉 *Sound wave graphs depict pressure variation over time, showing crest, trough, and average density.*
34:39 🔍 *The distance between two crests or two troughs in a wave is called wavelength, measured in meters.*
36:01 📏 *The representation of wavelength using lambda (λ) symbol is the distance between two consecutive similar points in a wave.*
37:11 🔄 *Frequency refers to how often a phenomenon occurs within a given time frame, analogous to the number of occurrences per unit time.*
38:23 ⏰ *The frequency of waves determines how quickly they repeat within a given time frame, influencing their characteristics such as crest and trough occurrence.*
38:37 🎤 *Frequency is represented by the term "new," which corresponds to Hertz, indicating higher frequency means more oscillations.*
39:19 📐 *Understanding wavelength: longer wavelength means lower frequency, shorter wavelength means higher frequency.*
40:47 🌊 *Relationship between wavelength, time period, and frequency: longer wavelength or time period corresponds to lower frequency, shorter wavelength or time period corresponds to higher frequency.*
41:31 📏 *Amplitude relates to the extent of vibration from the rest position, where greater displacement means higher amplitude.*
42:21 🔊 *Wave properties like wavelength and amplitude affect sound intensity.*
44:10 🔉 *Adjusting amplitude affects loudness, with higher amplitude resulting in louder sounds.*
45:21 🔊 *Sounds with a single frequency are termed as "tone," while those with multiple frequencies are "timbre."*
47:04 🔊 *Loudness and frequency are independent characteristics of sound waves.*
47:45 🎶 *Changing frequency affects the pitch of sound, while changing amplitude affects the intensity of sound.*
48:17 🔊 *Intensity depends on amplitude, while loudness is subjective and varies from person to person.*
49:56 🔄 *Intensity is directly related to loudness, while frequency inversely relates to period.*
50:52 🎯 *Sound speed is calculated using the formula: Speed = Distance / Time.*
51:19 📏 *Wave length measures the distance between two crests or two troughs.*
53:32 🤔 *Speed of sound is independent of wavelength, frequency, and physical conditions under "normal" circumstances.*
54:41 🌊 *Sound travels faster through denser mediums like steel compared to less dense mediums like air.*
54:54 🔄 *Reflection of sound is similar to reflection of light and follows certain rules.*
55:23 🔍 *Understanding incident angle and reflection angle is crucial for understanding sound reflection.*
55:52 🔊 *Sound can reflect and propagate even when obstacles are present, leading to phenomena like reverberation.*
56:06 🗣️ *Echo and reverberation are two applications of sound reflection, with echo being immediate and reverberation being prolonged.*
56:45 🧠 *Our brain processes sound within 0.1 seconds, making it essential for clear sound reception.*
57:14 🛑 *Rapid succession of sounds within 0.1 seconds can hinder clear comprehension due to overlapping processing in the brain.*
57:52 🔄 *Differentiating between original sound and reflected sound helps in understanding sound clarity, with a 0.1-second interval between them being optimal.*
58:21 🔊 *Minimum condition for sound: To hear a sound distinctly, there should be a minimum difference of 0.1 second.*
58:36 📏 *Speed of sound: Calculated to be 344 meters per second in air.*
59:33 📏 *Distance calculation: Utilizing simple mathematical formulas to calculate distances based on known speeds and time requirements.*
01:00:02 🗣️ *Sound reflection: Calculating the minimum distance for sound to reflect back, ensuring clarity in transmission.*
01:00:59 🔄 *Sound travel distance: Determining the total distance traveled by sound based on known speed and time.*
01:02:08 🎯 *Understanding the speed of sound is crucial; it indicates how fast sound returns after reflection.*
01:02:46 💡 *Calculating minimum distance for sound reflection is vital for proper understanding and application.*
01:03:30 🕒 *Calculation of time taken for sound to travel a certain distance involves simple formulas.*
01:04:00 📢 *Reflection and reverberation play crucial roles in sound perception and acoustics.*
01:05:12 🔊 *Understanding sound reflection is essential for realizing how sound travels and reaches our ears effectively.*
01:05:40 🔊 *The concept of hearing range (20 Hz to 20,000 Hz) is crucial in understanding the capabilities of the human ear.*
01:06:50 🎧 *The range of human hearing encompasses sounds with frequencies ranging from 20 Hz to 20,000 Hz, beyond which infrasonic and ultrasonic sounds cannot be perceived.*
01:08:00 🦕 *Infrasonic sounds, below 20 Hz, can be heard by some animals like dinosaurs, while ultrasonic sounds, above 20,000 Hz, may be audible to certain animals like dolphins.*
01:09:09 💡 *Ultrasound has various medical applications, including sonography for imaging internal body structures and detecting conditions like kidney stones.*
01:09:38 💊 *Ultrasound with high frequencies can be used to break kidney stones, offering a treatment option for such conditions.*
01:09:56 📏 *Understanding the relationship between speed, distance, and time is crucial, as speed equals distance upon time.*
Made with HARPA AI
Itna notes maine pure chapter me nhi banaya
@@Darkzshadowxz AI se meine banaaye hein Bhai ghanta kuch kar meine
@@i_reversal9329 ha wo Maine padha lekin mai bas bata rha tha
Thankyou!!!
Newton 5 law state that exam is directly propotional to fear and stress in mind and inversely propotional to time taken to complete full syllabus in one night 🙃🙃
Tomorrow is my science exam and the sound chapter is coming
I am waiting for this chapter thank you so much bhaiya ❤️❤️❤️❤️
Woah! You got heart from pranay bhaiya. Awesome
Hello bro are u a ff player
The introduction was everything to me when he said " Kyu sunni hoti hai aawaz" It was very funny😂😂😂
He just brings fun of studies even in a subject like history thanks a lot pranay bhaiya/sir ❤
😊
Army ????
Only channel where you get knowledge in a humorous way ❤️All thanks to Pranay bhaiya
Himanish never gives up !!
@@Abeer0509 imagine simping
@@hussain.am_ bro it is a meme for a boy named himanish who is in my class it goes like "himanish never gives up, mata ka jagrata smth"
@@Abeer0509 but the person you replied to is himanshi not himanish
@@Abeer0509 btw that's real good 😂
pranay bhaiya. best lecture on the channel..... u worked so hard for us just for us to score good in our exams. Thank you soooooo much!
Anyone notices the police sound on 42:35 mins btw aaj kal I liked my own comment likhne se jyada likes milte hai😂😂😂
Haaa
Yes
Sound chapter meh jin logo ko ambulance ka sound sunai diya wo like kare😅
Everything is temporary But Gattu and Bittu is permanent😂
IKRRRR
noticed too
@@manasviverma16 😭👌🏻 lmao
@@mc_gaming_spot7469 yasss
Guys pls time tag kar do
😅😅😅
I was just struggling to find a short lecture of this chapter and I got the notification just a few seconds ago 😂❤️ pranay bhaiya is the best✨
Same here tomorrow ki ma exam 🥲🥲
@@NamrataSharma07 aur mera 2din baad 🤣
@@STUDY_MON good
@@STUDY_MON best of luck 🤞
@@NamrataSharma07 same to you 😀🤭
Kis kis ne aumbulance ki aawaz suni😂😅😅
Tune suni hogi
Tumne bhai 😂😂😂
41:38 can you hear that sound in background????
Comment below
Is it of..
Ambulance or polic ??
At 42:35 again that sound heared....!!
I am just fascinated by your teaching and guitar playing skillss...
Crystal clear ho gye concept
😄😃
THIS HELPS SOOOOOOOOO MUCH TO PPL WHO DONT UNDERSTAND THINGS AT SCHOOL, YOUR VIDS RLY DO HELP...THANKYOU!!!
Key Takeaways for quick navigation:
00:18 🎶 Sound is crucial; understanding its basics is essential for this chapter.
02:18 📚 Some details are omitted in this explanation for simplicity, ensuring the core concepts are understood.
03:31 💡 Sound is a form of energy that produces sensation in hearing; understanding its nature is vital.
04:26 🌊 Sound is a type of wave motion, different from particle motion, and understanding these distinctions is key.
05:08 🔍 Three types of motion are discussed: translational, rotational, and vibrational.
05:23 🔄 Vibrations and oscillations are crucial concepts in wave motion.
06:35 🗣 Sound is essentially a form of vibration, where particles oscillate but do not displace significantly.
07:31 🔊 Sound is produced when objects collide, causing vibrations to propagate.
08:16 📈 Vibrations or wave motion progress through collisions, propagating further with each collision.
08:46 🔊 Particle motion and vibration energy transfer explanation.
09:29 🌊 Explanation of wave motion and types of waves.
09:55 🔍 Explanation of mechanical and non-mechanical waves and the role of medium.
11:08 🌐 Introduction to longitudinal wave transfer.
11:51 ⬅ Understanding of wave vibration direction and propagation.
13:47 🔊 Vibrations resulting from collision lead to sound production, demonstrating the essential role of collision in creating sound.
14:15 🔊 Wave energy is produced through vibrations, illustrating the connection between vibrations and wave energy.
15:23 🔊 Sound production requires collision, emphasizing the necessity of collision for sound production to occur.
16:05 🗣 Sound can travel through various mediums such as air, solid, liquid, or gas.
16:32 🎚 Sound requires a medium for transmission, which could be solid, liquid, or gas.
17:00 🔊 Understanding the concept of medium in sound transmission is crucial, whether it's solid, liquid, or gas.
17:43 🎙 The source of sound determines where sound originates, with particles vibrating and transmitting energy.
18:36 🚗 Sound propagation concepts lay the foundation for more complex topics in sound physics.
19:32 🔊 Sound travels through compression and rarefaction of particles in a medium.
20:00 🔄 Compression refers to particles being pushed closer together, while rarefaction is when they spread apart.
20:45 🤔 Compression and rarefaction are essential for sound waves to propagate.
23:19 ⚡ Collision between particles illustrates compression and subsequent rarefaction, crucial for sound transmission.
24:42 📈 Pressure variations in sound waves affect particle distribution.
25:09 🎯 Sound production involves compression followed by rarefaction.
26:20 📊 Graphing sound waves involves plotting compression and rarefaction.
29:07 📉 Graphs are drawn to represent compression and rarefaction in sound waves, aiding visualization of the wave's behavior.
30:28 🔇 Creating a vacuum inside a jar eliminates air particles, resulting in silence, demonstrating the necessity of a medium for sound transmission.
30:58 🔊 Sound travels faster in denser mediums due to particles being closer together.
31:11 🌊 Sound travels through different mediums by causing vibration in particles.
31:37 ⚡ Energy transfer occurs more efficiently when particles are closely packed.
32:07 🌀 Sound speed varies in different mediums due to particle spacing.
32:34 🌐 Characteristics of sound waves include wavelength, frequency, time period, and amplitude.
33:30 📐 Pressure and density change as sound waves propagate, affecting their characteristics.
33:58 ⬆ Crest represents high pressure while trough represents low pressure in sound waves.
34:13 📉 Sound wave graphs depict pressure variation over time, showing crest, trough, and average density.
34:39 🔍 The distance between two crests or two troughs in a wave is called wavelength, measured in meters.
36:01 📏 The representation of wavelength using lambda (λ) symbol is the distance between two consecutive similar points in a wave.
37:11 🔄 Frequency refers to how often a phenomenon occurs within a given time frame, analogous to the number of occurrences per unit time.
38:23 ⏰ The frequency of waves determines how quickly they repeat within a given time frame, influencing their characteristics such as crest and trough occurrence.
38:37 🎤 Frequency is represented by the term "new," which corresponds to Hertz, indicating higher frequency means more oscillations.
39:19 📐 Understanding wavelength: longer wavelength means lower frequency, shorter wavelength means higher frequency.
40:47 🌊 Relationship between wavelength, time period, and frequency: longer wavelength or time period corresponds to lower frequency, shorter wavelength or time period corresponds to higher frequency.
41:31 📏 Amplitude relates to the extent of vibration from the rest position, where greater displacement means higher amplitude.
42:21 🔊 Wave properties like wavelength and amplitude affect sound intensity.
44:10 🔉 Adjusting amplitude affects loudness, with higher amplitude resulting in louder sounds.
45:21 🔊 Sounds with a single frequency are termed as "tone," while those with multiple frequencies are "timbre."
47:04 🔊 Loudness and frequency are independent characteristics of sound waves.
47:45 🎶 Changing frequency affects the pitch of sound, while changing amplitude affects the intensity of sound.
48:17 🔊 Intensity depends on amplitude, while loudness is subjective and varies from person to person.
49:56 🔄 Intensity is directly related to loudness, while frequency inversely relates to period.
50:52 🎯 Sound speed is calculated using the formula: Speed = Distance / Time.
51:19 📏 Wave length measures the distance between two crests or two troughs.
53:32 🤔 Speed of sound is independent of wavelength, frequency, and physical conditions under "normal" circumstances.
54:41 🌊 Sound travels faster through denser mediums like steel compared to less dense mediums like air.
54:54 🔄 Reflection of sound is similar to reflection of light and follows certain rules.
55:23 🔍 Understanding incident angle and reflection angle is crucial for understanding sound reflection.
55:52 🔊 Sound can reflect and propagate even when obstacles are present, leading to phenomena like reverberation.
56:06 🗣 Echo and reverberation are two applications of sound reflection, with echo being immediate and reverberation being prolonged.
56:45 🧠 Our brain processes sound within 0.1 seconds, making it essential for clear sound reception.
57:14 🛑 Rapid succession of sounds within 0.1 seconds can hinder clear comprehension due to overlapping processing in the brain.
57:52 🔄 Differentiating between original sound and reflected sound helps in understanding sound clarity, with a 0.1-second interval between them being optimal.
58:21 🔊 Minimum condition for sound: To hear a sound distinctly, there should be a minimum difference of 0.1 second.
58:36 📏 Speed of sound: Calculated to be 344 meters per second in air.
59:33 📏 Distance calculation: Utilizing simple mathematical formulas to calculate distances based on known speeds and time requirements.
01:00:02 🗣 Sound reflection: Calculating the minimum distance for sound to reflect back, ensuring clarity in transmission.
01:00:59 🔄 Sound travel distance: Determining the total distance traveled by sound based on known speed and time.
01:02:08 🎯 Understanding the speed of sound is crucial; it indicates how fast sound returns after reflection.
01:02:46 💡 Calculating minimum distance for sound reflection is vital for proper understanding and application.
01:03:30 🕒 Calculation of time taken for sound to travel a certain distance involves simple formulas.
01:04:00 📢 Reflection and reverberation play crucial roles in sound perception and acoustics.
01:05:12 🔊 Understanding sound reflection is essential for realizing how sound travels and reaches our ears effectively.
01:05:40 🔊 The concept of hearing range (20 Hz to 20,000 Hz) is crucial in understanding the capabilities of the human ear.
01:06:50 🎧 The range of human hearing encompasses sounds with frequencies ranging from 20 Hz to 20,000 Hz, beyond which infrasonic and ultrasonic sounds cannot be perceived.
01:08:00 🦕 Infrasonic sounds, below 20 Hz, can be heard by some animals like dinosaurs, while ultrasonic sounds, above 20,000 Hz, may be audible to certain animals like dolphins.
01:09:09 💡 Ultrasound has various medical applications, including sonography for imaging internal body structures and detecting conditions like kidney stones.
01:09:38 💊 Ultrasound with high frequencies can be used to break kidney stones, offering a treatment option for such conditions.
01:09:56 📏 Understanding the relationship between speed, distance, and time is crucial, as speed equals distance upon time.
Padhte kab ho 😂
13:18 mujhe laga Mera net nhi chal rhaa😅😅😅
By the the way
Just padhle is best😊😊😊
Same dude 😂😂😂
You were my best discovery pranay bhaiya🤧💖 and after discovering you i understood that nothing is actually boring its just the way of teaching and understanding ...✨
@@NazirAhmad-th4gs ??
Tomorrow is my UT of science which includes the chapter sound and i got it just few seconds ago.......... Hats off to u *PRanay Bhaiyaa*
Thank you bhaiyya! Aisa video dekhke aise dil me khushi hoti hai...
Pranay bhaiya you're the best, we really needed this type of lectures it's really helpful for a revision before exams..hope we'll get teachers like you in our life ahead ❤️
To all the grade 9 appearing final exams on 2023 i wish u all the best of luck🖤💫
thank you so much Bhaiya!
The way you teach is sure to never make us forget the concepts😄❤
I scored 38/40 in my exam thank you bhaiya
congrats dude
JustPadhle!!
thxsss a lot for ur support throughout myyy 9th class which was actuallyy rlly difficult but u rlly made it a lot more easier......thxs a lot pranay bhaiya for ur love support n everythin loads of love
Waiting for this chapter from very long time 😁 finally got it 🥳 thanks pranay bhaiya
Thank u bhaiya for this awesome lecture. I completed almost whole syllabus from you and your team. This is the best lecture on youtube and funny too😆. Congrats to Just Padhle for being the best channel for class 9th. May u hit a million subscribers soon.Thanks a lot❤❤
42:35 bheya ko pakarne police aayi hai 🚔🚓👮👮♀️👮♂️🚨😂😂
0:23 bheya apne talent ka flex kr rhe hai 😂
😂😂😂
Nahi wo taar hilanae ki awaaz ko flex kar raha hai 😂😂
I was just searching a video about sound and finally I got this notification.This video made my rest of the day
Pranay Bhai is the best ❤️
No one teaches like you bro. May God bless you! I have nothing but love, respect and prayers for you.. from the bottom of my heart
""Bro""?! 💀
Bro ? 😂😢
What's with the surprise? 😂😂I know that my comment is cheesy and cringy... but the guy was a saviour for me in 9th.@@rajivjain0974
america got talent bro got as
💀Wha-
Thankyou Bhaiya
For this amazing Lecture now I'm confident about this chapter for my final examination 💗✨
@JustPadhle thanks Pranay Sir, it helped a lot !
:))
The way you played guitar bhaiyaaa is awesomeeeeee ❤️❤️❤️❤️❤️❤️❤️ and thank you so much for for this video I was waiting since long time for this.. and finallyyy❤️❤️🥺
1:09:02 bhai, i am literally studying at 3am alone and you just scared the shit out of me by saying those words 💀
pehele neend poori kar lo jii
npc
Aapke sare chapters science ke explain kiye hue mene dekh liye and today i am watching your last video and my syllabus will be finished...i will always prefer your videos for quick revision thank you for everything sir...I literally Lived class 9 with you💗
Thank you pranay bhaiyaa
I am glad that I've found a knowledgeable treasure ❤
Bhaiya you know that in the way you use to present a lecture is so energetic ❤️❤️❤️❤️ whe studying we feel so excited 🥰🥰🥰
Sir love your content , hats off to u 🙌🏼
Thank you Sir, for your hardwork for us. You teach very well. And able to understand everything. 😊
Thank you sir 😊 just because of you I understood everything
All thanks to pranay bhaiya without ur support it is very difficult to give our best in exam thank you so much bro 🥰🥰
THANK YOU, BHAIYA, WE WERE WAITING FOR THIS CHAPTER ONLY WITH THIS WE HAVE COMPLETED OUR SYLLABUS.
Nahi mera toh kabka khatam ho gaya gawar ye toh bas revision hai
How many students 😮come in 2024😅 , 😂😂present lagbaa lo🤠
👇👇👇,
Comment your Instagram id 🐹
Thankkk you soo much Pranay bhaiya for quick and easy explanation 💗✨
Thanks sir for this wonderful explaination 😃 I needed the chapter in one go . This channel is the best 🥰
Waiting for this chapter from very long time .I was just struggling to find a short lecture of this chapter and I got the notification just a few seconds ago Thank u soo much for this videooo. thanks sir for u and your team support
53:48 Mai kaise baat Karu 😂
Joking aside, I have never seen a teacher like you ,your sense of teaching is next level
Thanks For teaching us ❤
Tum baat hèe mat kro 💀
@@cubereleated8266yeah baat 😂😂
Kya baat hai😂
Thanks for uploading 1 day before my exam I was really worried about this chapter😊
FINALLY THE MUCH AWAITED LECTURE!!!
Amazing so many efforts you put for us 😊
Your videos are very interesting and helpfull thankyou for teaching us
No one can beat you.The best teacher in world.Keep on going
Pranay bhaiya...milkr macha denge and voice was awesome.... moreover we feel happy ki humare pranay bhaiya guitar bhi bajate h !...baki keep going... always there with u being a pranay bhaiya's family 🤞...love from j and k ❣️
8:22 that "aree meri jaan" was just😂🔥 ❤️❤️...u r the best teacher bhaiya.....thank u soo much for all your efforts 🥰
🤣🤣
😂😂👌🏻👌🏻
@@monika_o_o 😂😂
@@dayaram9192 😂😂
😂😂
U r awesome sir i fully understand this chapter thanks a lot 😊😍
Thank you sir it helps me so much❤❤
Thank you sir you r kinda popular in my school everyone studies from u r lectures thank uhh sir please keep supporting us❤️🔥
the guitar parttttttttt ooof PRanay bhaiyaa really grtttt
😂😂
Thank you so much bhaiya for this wonderful video 🥰☺️and I was shocked when you play ukulele but I can relate this cuz I play piano. Bhaiya tomorrow is my exam and this video was perfect for me and all the students who are watching before exams. Once again thank a lot bro ♥️🥰☺️
13:19 muja laga internet connection chala gaya
Exam se pehle revision ke liye sb se badhiya apka one shot hai ✨ saare doubt clear ho gye thanks a lot Pranay bhaiya 💫
Sir your explanation is just wow💕I usually do not understand physics but after seeing this video mine all concepts of this chapter is clear ...
thankuhhh so much😊
ur great pranay bhaiya u mix the study with joy and fun or kb video ka end aa gya pta bhi nhi chla😌THANK YOU
The video was really helpfull I thought this chapter was really hard but thanks to Pranay bhaiya who made it easy 😊
videos of the pastrolists,circles,quadrilaterals are needed pranay bhaiya
i am struggling with it
Kal exam h aur abhi yeh video is just like a saviour, cuz its uploaded just one day before my exam
Sir tomorrow is my final exam
I am not learn anything in all year😂
Just Amazing...it's the important chapter for my exam u had just completed it faster than other you tube channels thanks alot❤️
Ur app padhle is also amazing👍✨
Can't tell you how much i needed this
I can't found anyone like you sir ❤😊
the intro got me goosebumps!!😍
Bhai tera emoji mast lga
Mujhe v ...❤❤
TECHY YT
1 year ago (edited)
3:12 What is sound
4:15 Wave motion
6:39 Vibrational motion
9:03 Particle vs wave motion
9:25 Types of waves : mechanical and non mechanical
11:07 Longitudinal and transverse
12:43 Production of sound
15:34 Propagation of sound
29:43 Sound needs a medium to travel
31:10 Continue Propagation of sound
34:20 General characteristics of Wave : Wavelength
36:54 Frequency
39:32 Time period
40:55 Amplitude
42:48 General characteristics of wave : Pitch
43:27 Loudness
43:45 Intensity
44:34 Timber
45:21 Tone and note
50:03 Relation between time period and frequency
50:56 What is the speed of sound
54:53 Reflection of sound
55:59 Echo and Reverberation
01:04:36 Ex 12.2
01:04:47 Uses of Reflection
01:05:41 Range of hearing : Infrasound and Ultrasound
01:09:07 Application of ultrasound
01:09:44 Question
01:10:39 One min revision
01:10:55 Thank You Bachoo 😍😍
Edit: Thanks for 2k likes❤
Next Target like: 3.9😅
Edit: Sab apne exam phod Dena😉
This man always teach us like our bsf💗 thank u bhaiya💖💖
Who likes Pranay bhaiya's Smile? 😊😊😀
Me.
C❤😂😊
The intro is always thrilling 🔥💯
Hats off to you sir aap ek ek chiz bohot ache se samjhate ho ❤
SIR YOU ARE A LIFE SAVOR, i have an exam tomorrow which in which this chapter is also included and i was struggling with it now i can finally understand it, thank you bro
Waiting for this lecture from about 3 weeks ! Finally !!! Now I can say my science revision comes to an end 😅 Thanks Bhaiya!!!
Pranay bhaia aache se samjhaya aapne I love your technique ❤❤
20 days left for finals
Thank God i found this channel...i used to search for one shot lectures so that I can prep in short period of tym and this is the best channel for my last min prep...thanku so much bhaiya🔥
me toooooo are you in dav
Hmare to 13 se hai 😞
@@sanjayjio1972 Matlab Kal sai? Mere toh 25 sai hain
@@scienceclass7th302 matlab
@@scienceclass7th302 3 baje konsai exam hote hai bro?
Thank You Sir❤️
Bhaiya sound ki notes aa hi nahi raha website pa download karnaa ha
59:23 sir sound kisi bhi object se agar takrayega to wo penetrate kyu nahi karega
agar wo takrata he to phir sound ki speed solid me bhi kyu calculate hoti he
3:12 what is sound
4:15 wave motion
6:39 vibrational motion
9:03 particle vs wave motion
9:25 types of motion
11:08 longitudnal and transverse
12:43 production of sound
I litterallyy can't understand this chapter from atleast a week ago !!but now it's just sooo clear ❤️🤌
1:57 1:57 1:57 1:57 1:57 1:57
Thank you so much bhaiya, you made study fun, my science paper is over and it went very good❤❤
Sir, Really Awesome!, Best Explanation on TH-cam!
I was seriously waiting for this lecture
Thanks bhaaaayyyyaaaaaa
God always bless you
U saved my few precious marks through this lecture 😍
Sobo girl hai kya bhaayaaaaaa cringe kahi ki
Bhaiyaa theeee most awaited chapter thank youuu😭❤️
Hii
hi sir , just a suggestion but i prefer these kind of videos rather than the smart board ones because i can see the ppt clearly and closely than the smart board because teachers will in front and covers materials too , i don't know if others also think the same way but ya i prefer ppt from ipad.
Thank you bhaiya for teaching us like a friend ❤❤❤
Bhaiya you should also start a guitar teaching channel 🙂🙂
Pranay bhaiya i was scared by listening these complex words in my school but after watching the lecture these terms are so fuddu to me 🤩
Thanks bhaiya! 😇
please, Ch 15 improvement in food resources
YOU ARE A LIFE SAVER ❤ PRANAY BHAIYA. YOU ARE BEST TEACHER ❤TYSM FOR TEACHING US 🙏
THANK YOU SOO MUCH PRANAY BHAIYAAAA I WAS SOOO TENSED FOR THIS CH!!!! THERE WAS NO PROPER VIDEO FOR THIS SOUND CH THAT SATISFIED ME!! 🥲ACTUALLY INITALLY LOST HOPE AS SOON AS I FOUND OUT JUST PADHLE DOESNT HAVE A LECTURE FOR THIS CH, I WAS MENTALLY PREPARING MYSELF TO FAIL IN THIS CH😰😂😂
Thanks Sir For Such a Wonderful Lecture 🥰