The Symmetry concept explained here is really interesting and important. The Symmetry around the normal to interface between medium plays an important role in optical refraction. It is not something associated with light rather with the distribution of internal constituent of material through which light is passing during its refraction.... Thank you Sir, you are one of best science teacher and popularizer of our country.
The speed of light is changing in denser medium. When ray of light falls normally on the interface, then it does not bend. It means that the time period is not constant and will take longer time to pass because of less speed of light,but time period is always constant. How is this possible? Please answer this in this way not in sin i / sin r = 0 hope you will ans to my doubt
@@KavitaYadav-ul8fb Time period and frequency of a wave (the interrelation f=1/T) depends upon source frequency and due this reason unless the repeatability or periodicity of source is affected, medium is not going to affect both frequency and time period. The velocity of light varies on passing from one medium to another medium because of the variation in wavelength. C = frequency1× wavelength 1 in vacuum. When it gets into another medium C changes to let V. Then V = frequency 1× wavelength 2. The variation in the wavelength (the spatial gap between two repetitions) is the reason behind changing of velocity. Again the bending of light for case oblique incidence is beautifully explained in Electromagnetic theory. See Fresnels theory of refraction and reflection in EMT.
I have seen on many internet platforms they have mentioned that snell's law is not valid for normal incidence. Even in the schools teachers use to teach that snell's law is not valid. From past three years I am regularly teaching and telling students that don't go with the misconceptions. Snell's law is valid in every condition but students Aaj line on some websites which are no authentic information. Thanks to HC VERMA SIR
And the whole india is still have that IAS/IIT fever Kisi ko na padhne ka hai na smjhne ka hai sbko bs iit me jana hai aur 9 to 5 karna hai 🥱 Hats off to you public Hc verma sir ❣️ the greatest of all time ⚡
Voltage can be easily defined as it is a ability battery to charge electrons for example electron round in conductor and get discharge than again they came in battery and battery will charge this electron that is know as volt and it is the unit of potential diffence
I argued my science teacher regarding this topic for a whole period of 45 mins. He was saying that no refraction occurs when light incident normally to the surface but I was not satisfied because whatever the angle is... Change in velocity, wavelength, amplitude still occurs. So why not to call it refraction?? Because of only unchanged direction?? Definitely not. Because as sir mentioned here... Bending is sign of refraction but not itself refraction. I 100% convinced my teacher with my points to accept this as refraction. Thank u for he video sir... Big fan👍
in text books, these days, it is clearly written that the change in speed of light ..... is called refraction. In refraction, bending of path happens except for normal incidence. Then, why do the teachers stress on Bending...
Light is a sine wave having plus and minus electric monopoles. Moment is necessary for bending, which requires force and moment arm. Inclined light beam has a downward component of electric field which produces downward force due to attraction between opposing electric monopoles and moment arm, as a result light beam rotates towards normal in denser medium like clock pendulum. In normal incident light beam there is no downward component of electric field or downward force. Also there is no moment arm the light beam therefore travels straight through denser medium without bending.
Sir....... I would very much recommend a playlist for topics on physics...... Where you teach every basic topic in accordance with the syllabus, so that we have a uniform studying structure. And have a QnA ( question and answer) session for the topic that you have taught in the previous video. Hope you see this comment...... Thank you very much sir.... Wish you great health!!!
Respected sir....if you upload all lecture of CONCEPT OF PHYSICS with questions and explanation then all market of education system of India will close ....but it's beneficial for weaker sections of society .....sir please do these.....for your satisfaction of your country......
Education chahiye free mein aur engineer banke lakho kamoyege waah re hypocrisy. Education agar free mein loge to engineer banne ke baad salary mat lena ya us salary ko daan kardena bolo hai himmat
Hello sir! Sir I've a request. Can you please make videos for the basic concepts of the physics of class 10. Like concepts that will give us a clarity well enough to solve any problem. It would be a privilege to clear my fundamentals from you sir. Thank you:)
Hey! As we know that electrons are negatively charged ions and cathode is also a negatively electrode which means it is made of negatively charged electrons. And anode is positively charged. We know that electrons (negatively charged ions move from negative to positive electrodes) that is they move from negatively charged cathode to positively charged anode Hope you'll get it. If still there's a question, you can ask me out Thank you! Regards Urvashi :)
Sir I'm student of class 10 2022-2023 and I'm CONFUSED because in our NCERT The second law of refraction says The ratio of sine of angle of incidence to the sine of angle of refraction is a constant for the light of given colour and for the given pair of media This law is also known as snell's law of refraction **And SNELL'S LAW SAY THAT THIS IS TRUE THAT ANGLE OF INCIDENCE NEVER BE EQUAL OR PERPENDICULAR TO 90° ( 0
इलेक्ट्रान किस कारण से किसी चालक में एक स्थान से दूसरे स्थान पर जाते हैं? वह बल जिसे विभव कहा जाता है यानी वोल्टेज- वह पैदा कहाँ से होता है? क्या फोटानों से !
Voltage is created from potential difference between two charged particles,if you have a positive pole and there are two electrons near it the closer electron will face more force and will have more potential than other,this difference in the potential is called potential difference.this difference is needed to create flow of electron.
Bro it is used when we ask the value of x/x where x is just more or less than zero but here there is exactly zero by zero so it is indeterminate In short this is not x ➡0 it is x=0 so you can't find specific value
Sir Aap se gujaarish h ki , purA eleven and twelth ka ek , ek concept lecture ke through complete kar dijiye, taaki pura concept clear ho aur question ke saath.
Sir, I am Aditi Bhashkar of class 10. I want to ask you a question. My question is that, For a real and inverted image magnification (m) is taken as negative (-ve). When m
bhai tera concept hi glt h negative sign nature batata he on the basis of direction tu aisa kyu soch rha ki magnification less than 1 -ve hoga 0.5 negative value thode h
Sir you said, for normal incidence(0°) also snell's law is valid as asked in the doubt also, but in the book it is given snell's law is valid only of angle i is between 0 and 90. Internet showing varied answers, can you please tell?
If a beam of red light and a beam of violet light are incident at the same angle on the inclined surface of a prism from air medium and produce angles of refraction r and v respectively, which of the following is correct A. r = v B. r > v C. r = 1/v D. r < v Sir please explain it.
Here's the mathematical explanation , if you still have the doubt : I am representing red as r and violet as v. Wavelength r > Wavelength v => Mew v > Mew r (since wavelength is inversely proportional to refractive index) => Sin i/Sin v> Sin i/Sin r => Sin r> Sin v => r>v Hope it helps
Sir aapki book ''concepts of physics '' me drift velocity ka Jo formula hai vo galat hai....kyuki hamm single electron ki nhi multiple electron ki average velocity lete hai matlb Sahi equation hoga (V=eEt/m).wo V=eEt/2m single particle ke liye aayega . Sir mujhe 1 bar confirm kr dijiye comment krke
Sir, in following velocity in media 1/ velocity in media 2 (v1/v2) is equals to 1/u(mew).. Hence, it can be observed by refractive index is inversly proportional to velocity in media
Abhay Pratap Singh It does deviate, but as the lens which is used is so thin , that the deviation is negligible, so even in textbooks it is written that we use thin lenses, after all we imagine the centre as glass slab, and deviation in glass slab is directly proportional to thickness of slab
Sir i am ashutosh. I study in class 10. Sir I have a doubt in the ohm's law that I=Q/T therefore Q=I×T V=W/Q putting Q=I×T Therefore V=W/(I×T) that implies V is inversely proportional to I then how can it be V be directly proportional to I according to Ohm's law.
Hello Ashutosh ! Nice to see the questioning attitude. One approach to answering your question is as follows: BRIEF, ONE LINE ANSWER: V not inversely proportional to I, because W / t is not a constant. -EXPANDED EXPLANATION: -> Whenever we wish to convert an equation expressed in the form of proportionality to the form of equality, we introduce a constant. --> Likewise, following the same logic, if we wish to convert an equation in the equality form to a proportionality form to establish the proportionality between two quantities, we have to ensure that the remaining quantities are CONSTANT. --> By this logic, in the above equation, where we have V=W/(I x t), we could have said V is inversely proportional to I, ONLY IF the remaining part on right hand side, W/t, is constant. However, that is not the case. W/t is work done divided by time, which is the same as power. If Voltage is varied, then for a given resistor, the power in the circuit will NOT remain the same. --> to take the arithmetic steps that you have taken one step further, we could say that W/t = P (Power). Since Power = VI, we can now say that V = V I / I, i/e., V = V, which is consistent. --> To put it differently, to infer that V is inversely proportional to I, in contradiction to Ohm's law, we will have to establish that W/t, i.e., Power P in the circuit is a constant for varying voltage or current, which is not true. As you increase the voltage applied to a resistor, we observe experimentally beyond doubt that current increases. Since Power is product of V and I, as both increase, P will also increase considerably, not remain constant.
Thinking causally if we are travelling in a bus and suddenly brakes are applied than a wave in contact to the floor of the bus is being generated and supposing the friction acts opposite to the wave generated if we can manage to equal the magnitudes of both the generated waves then no person will get a forward push in the bus.Sir can this be possible?
Good evening sir..I am saanvi, studying in 10 standard.. sir I confusion ...it is always said that potential difference is directly proportional to current..which is further equal to charge ×time..which states that potential difference is directly proportional to charge..but according to potential difference definitions V=W/Q....which means charge is inversely proportional...so I am not able to understand it??
See as I understood charge and current are different things and you are mixing them up. And you are not satisfied them tell me again it may happen that I don't understood you problem .🙏
You are indirectly referring to Ohm's law while stating potential difference is directly proportional to current. The only misinformation is that Ohm's law is not always valid, it has many exceptions. Whereas while talking to the definition, a) Potential difference= Work done/charge b) Current= Charge/time; Both above equation are general statements and is always valid.
Sir...apne kaha ...light does not bend because it has many options of directions to bend in this case by the angle 10 degrees ...but second law says the incident ray , normal and refracted ray all lie in same plane...then it will have only two directions to bend either left or right with an angle..
I appreciate the curiosity and imagination of Shivam Saurabh...keep it up👍👍👍
True
Very nice explanation Sir. Thank you
To understand refraction of light ICSE 2020-21 of class 10
m.th-cam.com/play/PLpzWoho73qlLxP-6B-XNaa3aYXXiLxUN3.html
Mere ye saal yahin doubt aya
@@rkp8495 pagal sala.nonsense
"Bending is because of refraction, refraction itself is not bending"... Class 10 ncert left the chat🗿
THANKS SIRRR.
MY CONCEPTS ARE CLEAR NOW....
THANKS ONE AGAIN SIR....💕
Awsm......
Bhai how came you ask this doubt? Did you speed post or something like else
Keep it up Kid. Well done.
The doubt was indeed a good one for any science enthusiast and I'll applaud you for this , this things came in every single sci. Loving boy ;))
You are a curious brain, just keep thinking in this way, u have a scientific mind
Maan u r a great teacher .
The curiosity inside u for giving knowledge is something!!
Full respect sir!!!
God is that you ??😱
I will be sure to tell all of my friends about this channel 😘
To understand refraction of light ICSE 2020-21 of class 10
m.th-cam.com/play/PLpzWoho73qlLxP-6B-XNaa3aYXXiLxUN3.html
Thank you sir.This was very useful.Respect from sri lanka 🇱🇰
I have got nothing to do with this topic but still I m watching just because I love watching his teachings......
💞💞💮💮
The Symmetry concept explained here is really interesting and important. The Symmetry around the normal to interface between medium plays an important role in optical refraction. It is not something associated with light rather with the distribution of internal constituent of material through which light is passing during its refraction....
Thank you Sir, you are one of best science teacher and popularizer of our country.
The speed of light is changing in denser medium. When ray of light falls normally on the interface, then it does not bend. It means that the time period is not constant and will take longer time to pass because of less speed of light,but time period is always constant. How is this possible? Please answer this in this way not in sin i / sin r = 0
hope you will ans to my doubt
@@KavitaYadav-ul8fb Time period and frequency of a wave (the interrelation f=1/T) depends upon source frequency and due this reason unless the repeatability or periodicity of source is affected, medium is not going to affect both frequency and time period. The velocity of light varies on passing from one medium to another medium because of the variation in wavelength. C = frequency1× wavelength 1 in vacuum. When it gets into another medium C changes to let V. Then V = frequency 1× wavelength 2. The variation in the wavelength (the spatial gap between two repetitions) is the reason behind changing of velocity. Again the bending of light for case oblique incidence is beautifully explained in Electromagnetic theory. See Fresnels theory of refraction and reflection in EMT.
Sir you are one of the best physists .....of the world.....
I have seen on many internet platforms they have mentioned that snell's law is not valid for normal incidence. Even in the schools teachers use to teach that snell's law is not valid. From past three years I am regularly teaching and telling students that don't go with the misconceptions. Snell's law is valid in every condition but students Aaj line on some websites which are no authentic information. Thanks to HC VERMA SIR
And I wrote my own theory and it appears to be correct
The fact that he didnt change even a single word of his legendary book from past so many years is astonishing. His books are just so accurate.
Same question was eating my mind,now I am satisfied with the answer.
Same question came in my mind
Thatswhy i was searching a good explanation and i found this clip
And the whole india is still have that IAS/IIT fever
Kisi ko na padhne ka hai na smjhne ka hai sbko bs iit me jana hai aur 9 to 5 karna hai 🥱 Hats off to you public
Hc verma sir ❣️ the greatest of all time ⚡
I had the same confusion but now it is crystal clear thanks a lot sir ❤️❤️❤️
Ohh till now I thought that mathematics and physics failed at this point but he proved it right so 😂😂😂😂😂😂😂😂😂.
Sir you are a genius ❤❤❤❤❤
Best explanation to this problem....
I also had the same doubt
Thank you so much sir ❤️
One word : Genius
The only teacher who cleared me this question thank u very much sir 🙏
Shivam saurav u r too good yaar.... Thnkzz fr asking sch a good question
वोल्टेज क्या है सर कृपया इस पर कोई वैज्ञानिक दृष्टिकोण वाला वीडियो बनाए !
Voltage can be easily defined as it is a ability battery to charge electrons for example electron round in conductor and get discharge than again they came in battery and battery will charge this electron that is know as volt and it is the unit of potential diffence
Thanku sir . You are a real physician
you meant physicist?? lol
I argued my science teacher regarding this topic for a whole period of 45 mins. He was saying that no refraction occurs when light incident normally to the surface but I was not satisfied because whatever the angle is... Change in velocity, wavelength, amplitude still occurs. So why not to call it refraction?? Because of only unchanged direction?? Definitely not. Because as sir mentioned here... Bending is sign of refraction but not itself refraction. I 100% convinced my teacher with my points to accept this as refraction. Thank u for he video sir... Big fan👍
Omg it happened with me too but my teacher did not agreed
in text books, these days, it is clearly written that the change in speed of light ..... is called refraction. In refraction, bending of path happens except for normal incidence. Then, why do the teachers stress on Bending...
Sir you are my role modern and I am also from Bihar.
No doubt sir is authority of physics
Light is a sine wave having plus and minus electric monopoles. Moment is necessary for bending, which requires force and moment arm. Inclined light beam has a downward component of electric field which produces downward force due to attraction between opposing electric monopoles and moment arm, as a result light beam rotates towards normal in denser medium like clock pendulum. In normal incident light beam there is no downward component of electric field or downward force. Also there is no moment arm the light beam therefore travels straight through denser medium without bending.
U r my favourite teacher sir..
Beautiful explanation
I am a big fan of yours and I love science
Sir. Thermodynamics k entropy ki video upload kijiye..
Sir ,please make a lecture on diffraction of light.
Sir....... I would very much recommend a playlist for topics on physics...... Where you teach every basic topic in accordance with the syllabus, so that we have a uniform studying structure. And have a QnA ( question and answer) session for the topic that you have taught in the previous video.
Hope you see this comment...... Thank you very much sir.... Wish you great health!!!
To understand refraction of light ICSE 2020-21 of class 10
m.th-cam.com/play/PLpzWoho73qlLxP-6B-XNaa3aYXXiLxUN3.html
I agree with you!
😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃😃
Sir
Upload a video on Schrodinger equation derivations
Me too also same question came in my mind and i was searching answer and I got this now I got it😃😃😊
Wow amazing questions 👍👍🙏🚩🚩🚩
Thanks sir.. You are the best.
Respected sir....if you upload all lecture of CONCEPT OF PHYSICS with questions and explanation then all market of education system of India will close ....but it's beneficial for weaker sections of society .....sir please do these.....for your satisfaction of your country......
pawan Kumar To understand refraction of light ICSE 2020-21 of class 10
m.th-cam.com/play/PLpzWoho73qlLxP-6B-XNaa3aYXXiLxUN3.html
Education chahiye free mein aur engineer banke lakho kamoyege waah re hypocrisy.
Education agar free mein loge to engineer banne ke baad salary mat lena ya us salary ko daan kardena bolo hai himmat
Nice question and solution
Mind blowing sir
Hello sir!
Sir I've a request. Can you please make videos for the basic concepts of the physics of class 10. Like concepts that will give us a clarity well enough to solve any problem.
It would be a privilege to clear my fundamentals from you sir.
Thank you:)
th-cam.com/video/ujAMoTmqDdc/w-d-xo.html
Wow man such a great question.....
Sir please make a video on expression of drift velocity as many say the expression given in your book is incorrect
Very nice question and very clear explanation. Thank you sir.
Thank uh sir🙏 it is very useful
Thanks sir for giving me knowledge. You are great. 🙏🙏
Thank you sir , It is also my doubt .
Somebody tell me how can I ask to sir
Nice explanations sir ..
Thanks sir for concept my level I study in class 10th
Putting any value as answer will fulfill the criteria
Sir is amazing .Who agree to me hit like button
Wow... What an explanation sir !!! 😍😍
actually, this quistion has been asked in ncert. If anyone had read the topic 'refraction through a rectangular glass slab' line by line.
Sir, why electron move from cathode to anode in electrolite solution (battery machinisim)??
Hey!
As we know that electrons are negatively charged ions and cathode is also a negatively electrode which means it is made of negatively charged electrons.
And anode is positively charged. We know that electrons (negatively charged ions move from negative to positive electrodes) that is they move from negatively charged cathode to positively charged anode
Hope you'll get it.
If still there's a question, you can ask me out
Thank you!
Regards Urvashi :)
Sir , When we talk about optically rarer or denser medium .... What it actually is ? Can you please explain it......
Sir I'm student of class 10 2022-2023 and I'm CONFUSED because in our NCERT
The second law of refraction says
The ratio of sine of angle of incidence to the sine of angle of refraction is a constant for the light of given colour and for the given pair of media
This law is also known as snell's law of refraction
**And SNELL'S LAW SAY THAT THIS IS TRUE THAT ANGLE OF INCIDENCE NEVER BE EQUAL OR PERPENDICULAR TO 90°
( 0
Nive explanation sir❤️❤️
I also had the same doubt and wanted to ask it to someone... Now I got it. How can I ask other doubts to you sir ?
Sir please start teaching online in TH-cam live stream. It will be really helpful for us and please start from class 10 ICSE.
Sir please describe the parallel plate capacitor concept and working
इलेक्ट्रान किस कारण से किसी चालक में एक स्थान से दूसरे स्थान पर जाते हैं? वह बल जिसे विभव कहा जाता है यानी वोल्टेज- वह पैदा कहाँ से होता है? क्या फोटानों से !
Voltage is created from potential difference between two charged particles,if you have a positive pole and there are two electrons near it the closer electron will face more force and will have more potential than other,this difference in the potential is called potential difference.this difference is needed to create flow of electron.
The great sir....
Is force required to move a electron increases by increasing its mass?if yes then why?
Bending is Refraction, Refraction is not bending. Yeahhh
I am a average student but I know this concept alredy
Thanku sir i was having this confusion for about 3 days so kind of u and appreciate one who asked the question thanku soo so much dear
Thank you so much sir😇😇🤩😌😊
If the answer is 0/0 form
Plzzz use the L'hospital rule
You can find some specific value for the refraction 👍
Bro it is used when we ask the value of x/x where x is just more or less than zero but here there is exactly zero by zero so it is indeterminate
In short this is not x ➡0 it is x=0 so you can't find specific value
Hehehee
0/0 is a indeterminate.
There need to apply limit
Well explained
Sir please clear difference between electric potential and electric potential in circuit
Hello Sir.Can you upload a video on AC Inductance Circuits
Sir please can you teach.optics full course on TH-cam??? It would be really helpful since boards exam will be there from February 15th 2022
Sir Aap se gujaarish h ki , purA eleven and twelth ka ek , ek concept lecture ke through complete kar dijiye, taaki pura concept clear ho aur question ke saath.
Thank you so much sir ❤️
Sir, I am Aditi Bhashkar of class 10.
I want to ask you a question.
My question is that,
For a real and inverted image magnification (m) is taken as negative (-ve). When m
Negative m means the image is inverted and m
It is not necessary that if M < 1 than the magnification is negative
Negative sign indicates inverted image
Just take magnitude if it is >1 enlarged positive and negative signs are taken only for direction above or below the principal axis
bhai tera concept hi glt h negative sign nature batata he on the basis of direction tu aisa kyu soch rha ki magnification less than 1 -ve hoga 0.5 negative value thode h
Sir I want ti learn from you but I don't know how pls tell me.
Sir can you please explain why we take sin only not other trignometrical ratios.
Yess sir please tell..
Sir you said, for normal incidence(0°) also snell's law is valid as asked in the doubt also, but in the book it is given snell's law is valid only of angle i is between 0 and 90. Internet showing varied answers, can you please tell?
Does the depth of tank with water change or remain same when viewed normally?
Love you sir....
Sir 11 class ka video share kijiye please
Vector and addition of vector and from first chapter principal of homogenety
Please.......,.....
If a beam of red light and a beam of violet light are incident at the same angle on the
inclined surface of a prism from air medium and produce angles of refraction r and v
respectively, which of the following is correct
A. r = v
B. r > v
C. r = 1/v
D. r < v
Sir please explain it.
Here's the mathematical explanation , if you still have the doubt :
I am representing red as r and violet as v.
Wavelength r > Wavelength v
=> Mew v > Mew r (since wavelength is inversely proportional to refractive index)
=> Sin i/Sin v> Sin i/Sin r
=> Sin r> Sin v
=> r>v
Hope it helps
Sir aapki book ''concepts of physics '' me drift velocity ka Jo formula hai vo galat hai....kyuki hamm single electron ki nhi multiple electron ki average velocity lete hai matlb Sahi equation hoga (V=eEt/m).wo V=eEt/2m single particle ke liye aayega . Sir mujhe 1 bar confirm kr dijiye comment krke
Sir, in following velocity in media 1/ velocity in media 2 (v1/v2) is equals to 1/u(mew).. Hence, it can be observed by refractive index is inversly proportional to velocity in media
O my god my all doubts are cleared thanks sir ❤️❤️GOD MAKE'S TEACHER THAT'S WHY WE ARE HERE IN CLASS 10 THANKS SIR 🙏🙏
Love u sir😍😍😍
Sir ,why does the light not deviate when passed through optical centre of a lens
Abhay Pratap Singh
It does deviate, but as the lens which is used is so thin , that the deviation is negligible, so even in textbooks it is written that we use thin lenses, after all we imagine the centre as glass slab, and deviation in glass slab is directly proportional to thickness of slab
And I want to ask you many questions too
Sir i am ashutosh. I study in class 10. Sir I have a doubt in the ohm's law that
I=Q/T therefore Q=I×T
V=W/Q putting Q=I×T
Therefore V=W/(I×T) that implies V is inversely proportional to I then how can it be V be directly proportional to I according to Ohm's law.
I hope you will be next IIT topper 🙂🙂
Hello Ashutosh !
Nice to see the questioning attitude.
One approach to answering your question is as follows:
BRIEF, ONE LINE ANSWER: V not inversely proportional to I, because W / t is not a constant.
-EXPANDED EXPLANATION:
-> Whenever we wish to convert an equation expressed in the form of proportionality to the form of equality, we introduce a constant.
--> Likewise, following the same logic, if we wish to convert an equation in the equality form to a proportionality form to establish the proportionality between two quantities, we have to ensure that the remaining quantities are CONSTANT.
--> By this logic, in the above equation, where we have V=W/(I x t), we could have said V is inversely proportional to I, ONLY IF the remaining part on right hand side, W/t, is constant. However, that is not the case. W/t is work done divided by time, which is the same as power. If Voltage is varied, then for a given resistor, the power in the circuit will NOT remain the same.
--> to take the arithmetic steps that you have taken one step further, we could say that W/t = P (Power). Since Power = VI, we can now say that V = V I / I, i/e., V = V, which is consistent.
--> To put it differently, to infer that V is inversely proportional to I, in contradiction to Ohm's law, we will have to establish that W/t, i.e., Power P in the circuit is a constant for varying voltage or current, which is not true. As you increase the voltage applied to a resistor, we observe experimentally beyond doubt that current increases. Since Power is product of V and I, as both increase, P will also increase considerably, not remain constant.
@@drsmpandit Thank u so much for paying your expensive time. Now I have understood the nuances. Thanks again.
Thinking causally if we are travelling in a bus and suddenly brakes are applied than a wave in contact to the floor of the bus is being generated and supposing the friction acts opposite to the wave generated if we can manage to equal the magnitudes of both the generated waves then no person will get a forward push in the bus.Sir can this be possible?
Sir what would be speed of sound in neutron star
Sir it is possible to give lift to rocket with the help of solar power
Good evening sir..I am saanvi, studying in 10 standard.. sir I confusion ...it is always said that potential difference is directly proportional to current..which is further equal to charge ×time..which states that potential difference is directly proportional to charge..but according to potential difference definitions V=W/Q....which means charge is inversely proportional...so I am not able to understand it??
See as I understood charge and current are different things and you are mixing them up.
And you are not satisfied them tell me again it may happen that I don't understood you problem .🙏
You are indirectly referring to Ohm's law while stating potential difference is directly proportional to current. The only misinformation is that Ohm's law is not always valid, it has many exceptions.
Whereas while talking to the definition,
a) Potential difference= Work done/charge
b) Current= Charge/time;
Both above equation are general statements and is always valid.
The greatest
Thank you so much sir
how to send my questions to you
....i have some confusions
Me too
To understand refraction of light ICSE 2020-21 of class 10
m.th-cam.com/play/PLpzWoho73qlLxP-6B-XNaa3aYXXiLxUN3.html
Sir...apne kaha ...light does not bend because it has many options of directions to bend in this case by the angle 10 degrees ...but second law says the incident ray , normal and refracted ray all lie in same plane...then it will have only two directions to bend either left or right with an angle..
Sir if we solve sin 0 / sin 0 by taking limit ,the answer will be 1.
So refractive index will be 1 which is right
It's not 1 though😂
Difference between reflections and refractions
A big query cleared sir