Calculate the no. of photons per second | Dual nature of light | Physics | Khan Academy

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Let's calculate the number of photons emitted per second from a 100 watt light bulb, and the no. of photons hitting the wall per second from a 5W/m^2 intensity laser light.

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Created by Mahesh Shenoy
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I'll be waiting eagerly for rest of the lectures of modern physics!

suryanshkhatri
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Bro really solved my problem in 5 minutes than my whole semester 😀

chookers
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woah, Look Mahesh Sir is back with his new lecture, lucid as always ❤️

aryanraj
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Sir, ur the G.O.A.T. of physics love ur voice and enthusiatic nature and u teach very simple. All the videos is about 1 hr or so but yours is always short and simple love it sir

s_Ashwanth
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Huge fan of you sir. Wish you all the happiness in the world. (As much as I find such comments annoying but FIRRSSTTT)

unknownhuman
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"Think about that"... makes it more interesting than anything...

anushreeshukla
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Hello mahesh sir can you please arrange this playlist in ascending order please 🙏🏼.

Ayushsingh-znut
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whenever I solve questions on this topic I used to refer to my class notes for formulae but now after listening to your lecture, I made a new way of understanding this topic...and no need to refer my notes again ...thank you so much sir🙏

harinimalla
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10:16 increase frequency- less photons
11:14 increase intensity- more photons

VG__
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Always Liked your videos before watching 👍

vivekgupta
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thank you man, with this video helped me a lot to resolve my homework haha

elsami
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Sir, plz upload this in hindi language on your another channel

raushankumar
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I divided by keeping 0.001 instead of 10 to the power of -3, but getting a different answer as 3.78X10 to the power of -21

nishantjoshi