Top 10 Light Numerical Questions || Class 10 || CBSE 2023 - 24
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- เผยแพร่เมื่อ 21 ต.ค. 2024
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Session Details:
✔️ Class: 10
✔️ Subject: Science
✔️ Master Teacher: Sanjiv Sir
✔️ Session Type: Recorded
✔️ Topic Name: Top 10 Light Numerical Questions
✔️ Topics to be Covered: Top 10 Light Numerical Questions || Class 10 || CBSE 2023 - 24
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1 like increase 5 %🎉
55 times 5😂
Batch 2024-25 attendence here don't forget😅😅😅
00:02 Understanding the formulas and concepts of light chapter is crucial for solving numerical problems.
02:05 Object distance is always negative for lens or mirror
06:19 Understanding magnification in terms of size and nature of the image.
08:46 Understanding magnification and focal length calculations
13:35 Calculating speed of light in different mediums using refractive index
16:18 Calculation of Speed of Light in Water based on refractive index and speed of light in vacuum
22:28 Convex lens and its focal length
24:49 Understanding object distance and image location
30:28 Understanding the formation of real images on a screen using concave mirrors and lenses.
32:29 Calculating magnification and distance in optics
37:15 Finding the focal length of the lens
Crafted by Merlin AI.
Q5- v=420cm
Q6- v=6.67cm m=0.55
Q7- v=-6.67cm size of image=1.67cm
Q9- v=15/13m size o image=3/15
Q10- combined focal length= -0.5m
Thanks bro
How did you calculate the size of image?
V is -420 cm
00:02 Understanding the formulas and concepts of light chapter is crucial for solving numerical problems.
02:05 Object distance is always negative for lens or mirror
06:19 Understanding magnification in terms of size and nature of the image.
08:46 Understanding magnification and focal length calculations
13:35 Calculating speed of light in different mediums using refractive index
16:18 Calculation of Speed of Light in Water based on refractive index and speed of light in vacuum
22:28 Convex lens and its focal length
24:49 Understanding object distance and image location
30:28 Understanding the formation of real images on a screen using concave mirrors and lenses.
32:29 Calculating magnification and distance in optics
37:15 Finding the focal length of the lens
Sir Q1 is wrong as R.I are interchanged . R.I of water is 4/3 and R.I of glass is 3/2 which is written wrong in the question....
hmm
Answers
Q.1 v = -20
Q.2 1.24*10 to the power 8
Q.3 Glass - 3*10 to the power 8 WATER-2.26*10 to the power 8
Q.4 Root3/Root2
Q.5 v-420
Q.6 v-6.67cm m-1.8
Q.7 v- -6.67cm h of object-1.67cm
Q.9 v- 15/13 m 3/13
Q.10 f- -0.5m
Glt h tumhara glt h q6 glt h or q3 bhi glt h
Recheck kro
Thankyou so much really helpful
Q3- speed of light in vacuum=2.6×10⁸m/s( exact-i) or 2.7×10⁸m/s(round figure-ii) and Speed of light in water = 1.7×10⁸( by-i) or 1.8×10⁸(by -ii)
Speed of light in air is
2.998×10⁸ m/sec
In vacuum it's
3×10⁸ m/sec
Speed light in water 4×10
bahi speed of light 2.2 * 108 hai
Kaun kaun class 10 me 95+ score karna chahta hai 🎉
@@Scienceexplainscoolstuff😂😂 ha munna
Yes I am
Chane se kuchh ny hoga bro
Chaht ko jarurat me badlo ge to hoga
mast joke mara 😂😂
Numerical start as :- 9:53 ✅
0:14 most important all 10th students
sir thankyou sir yesterday i saw your video and today is my half yearly science exam the question which you explained 32.14 min came in my exam for 5 marks and i scored it thankyou sir
❤❤
Sir ap piuneet superstar jaise lagte ho 🗿
Me bhi isi comment ko dhundh rhi thi😂😂
Kon kon es video ko ak din pahla dekh raha haa🎉🎉🎉
Sir power wale questions me focal length metre me lete hai and aapne 1st question me cm me liya hai
Questions 3 ka detailed answer 👇
Given : n
water
=
3
4
n
glass
=
2
3
v
glass
=2×10
8
m/s n
air
=1
Speed of light in a medium v
medium
=
n
c
where c and n are the speed of light in vacuum and refractive index of medium respectively.
(a) : v
glass
=
n
glass
c
∴ 2×10
8
=
(3/2)
c
⟹c=3×10
8
m/s
(b) : v
water
=
n
water
c
∴ v
water
=
(4/3)
3×10
8
=2.26×10
8
m/s
nW=2.25×10⁸
Am I right😊
09:38
35:40
Q4 ans. vg - 2.6x10 8 and vw - 1.7 x 10 to the power 8
same
but 2.6x10^8 is speed in vaccum
Speed in Vaccum 2.6x10^8m/s and speed of light in water is 1.7x10^8m/s
Bro iths 2.7 × 10^8 m/s speed in vaccum aap raound off karna bhul gaye
@@Venom_._7Z mera speed in water 40.5 x 10^8 a raha hai
@@Venom_._7Z Bhai Mera to 2.8 x 10^8 aa Raha hai
@@Study-Official348 tumahra Matlab 4.5 x 10^8?
@@amritgm3578 hn lagbhag same he hai 😂 ek ka 2.6 mera 2.7 or apka 28 😂
18:49 sir speed of light in vaccum and air is same i.e. 3*10^8m/s
question ke respect se lenkal na hai | speed of l in vaccum is different here and we use the new speed to find speed of l in water
Sir, make sure that question 3rd is right or wrong then tell us !!!!
❤❤❤❤
Thankyou sir
Ans-5=420cm
Q3. Wrong value given .😢
Sir, explaining concave mirror as convex and convex mirror as concave in diagrams
Please make videos on competency based questions after the completion of each science chapter 🙏🙏🙏🙏🙏
Sir ka smile bohot cute hai
Projecter vale ka answer hai =420cm
Competency questions on life process
Sir aap numerical thik se solve nhi krate ho faltu session aadha chij hm pe chhor dete ho aadha question pdhna bhul jate ho worst
💯
💯💯💯💯💯
SIRR PLEASE UPLOAD THE VIDEO OF MATHS PLANNER,WE REALLY NEED IT 😌😌
Pehla so jao fir padna 😢😂
Speed of light in air = Speed of light in vaccum = 3×10⁸m/sec ?!! 19:05
√3²
19:55 sir the values are interchanged nga = 3/2 and nwa = 4/3
Q.5. F = 20cm (because the circle of convex
lense becomes in the right side)
U = -21cm (In any lense and mirrors u is always negative)
V = ??
Sol :-
1/f = 1/v - 1/u
1/f + 1/u = 1/v
1/20 + 1/-21 = 1/v (so cross multiple them you will get)
1/20 * -21
1/-420 = 1/v(reciprocate them you get )
V = -420cm
Thank me later 😁❤
V will be positive
@@priyanshuwadhwani3961 how bro?? Can you explain pls
Yes I can explai
😂 yeah v will be positive (lens )
@@fearlessking8771 hasne wali kya bat hai isme...saram karo salo tum log ke wajhese India ka system gira hau hai...
1.7 X10^8ms of the speed of light in water
24:01 answer is 420
9:41 first question
Thankyou for this video bhaiya❤❤❤❤❤
Sr Nomenclature revision 🎉🎉🎉🎉🎉🎉🎉🎉🎉
Before my exam plz 🙏🎉❤
Up board 🎉🎉🎉
Mirror forMula m M 2 times aaya it means Minus+Minus=Plus
Aur lens ForMula m M 1 time aaya h it means Minus
Is this helpful..
Ma to 11pm pe padh ra hu kal mera paper hai science ka 😂😂 kon kon is time padhra
Sir can u pls make a new video for 2024 and 2025 10th batch we are in need now so pls I’m requesting u to do an another video for this year batch
Sir need competency based question numericals types of human eye and colourful world
Kon kon paper ke ek din Phale dhek rahe ha
lol
I hope everyon will score good in physics after studiyin by this sir🎉
sir 1/f=P hhota hai to sir 1st question me to lens formula me direct p subsitute kar dete
Thank you so much sir
@@Scienceexplainscoolstuff👍
1like = +5%. 1 comment=+8%
Best teacher ever i seen in my 10th
Q6 ma problem ha 15 aur 12 ka lcm 60 hota ha 😅
Hmm bhai
Sahi bola bhai 😅😅😅
5ka answer =0.0976
Kaun kaun class 10 ma 95 + score karna jhat ha who is this session 2024 2025
Sir please give answers also we get know that whether our answer is wrong or right
Thanks
Thank u sir 😄
36:15 sir size of image toh batao
Jo hame aata hai woh bata dete ho aur jo nahi aata hai use ignore karke aage badh jate ho🤬🤬🤬🤬
Can anyone teel 6th question main. Last line ka kya answer hoga if needle is moved farther ten what will happen please give 5 minutes and reply
Air plzz make raodmap for math sci sst ENG plzz sir
Magnetic field ch explain 😎😎😎🔥🔥🔥🔥🔥
Speed of light in water = 1.8 × 10⁸
Ans 5 --420
Galat bro i think -420
Speed in vaccum is 2.67×10⁸
Speed in water is 1.78 ×10⁸
But mine is different help plz
Question no. 3 is incorrect
😅Thanks 🎉🎉🎉🎉🎉
Best teacher in yt
Dhang se samjha yaar
Qus. 5 , V - 4.20 m
Sir electricity ka video bana dejia na please
Electricity one shot
Keep it up sir👍
Sir u r not energetic and look lazy😅
magnetic affect of current
Competency or cased based questions lao sir please...or assertion reason wale bhi .... please sir ❤
6:45
Sir you've told the same thing in the video you made 5 years back on this topic XD XD
Sir pyq ki tayari har ek set ka paper se karna hoga kya pyq kaisa karna hai ek chapter ka kitna pyq karna hai bata do koi bata do
What is the answer of question number 9
Thank you ❤️💕 sir doing it soon. ❤
We have only 6 months left for board exam
now only 4 days LOL
Question 5 mai v=6.6 hoga toh m=0.55
Can anyone tell me how to know the position of image??
Bhai thoda arrM se liko likh ne ki awaj arri he its very distrusting
Sir 7 no answer is wrong please check it once...
18:34 1.73^10⁸
Nice sir ☺️☺️☺️
कौन-कौन संदीप पांडे सर का मुरीद है दिल से❤❤
मुरीद means 😂( 😂)
Sir you are the best ❤️❤️
Question 3 wrong h yee question ke Karan Mera 1 hour waste huya 😢😢😢 sir pls question sure ho jaoo
Sir Q7 me 1/2 + ka kaise ayea -ka nahi aye ga?
Cw 1.7 ×10^8
3.1.78*10*8 m/s
Thank u sir
sir aap bahut jayada speed me padhate hai
Question no 3 ka last wala answer=1.77×10 ka power 8 hai😢
Please tell that what is screen
Bhaiya hindi medium ka vi upload kare plz❤
Quikly....😂😂😂😂
Important question of chemistry