PrepKit IIT-JAM Physics Group

1 question msq me tha 4T ki jagah 2T tha

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0.24

Any one please ?

Sare nehi... Kuch question

Thanks so much😄

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Hello guys good morning I have found in the books about measuring the temperature of the Sun that the Sun is considered as a black body. Now the question in my mind is how can the Sun be a Black body? When I think of a black body, I think of a black body reflecting a lot of radiation inside a cavity and coming out through a small aperture. There can be no such cavity and no such aperture in the middle of the Sun. So how can we compare the Sun to a Black Body? Suppose the solar radiation spectrum emitted from the Sun , is almost the same as the wave length Vs Radiation intensity of the Blackbody.This may also be coincidental. Graph The same means that the Sun is not a blackbody. I found it on Google "The radiation from the Sun is continuously distributed over all the wavelengths, so the sun can be considered as a blackbody" - In a blackbody, there is absorption, not distribution. How do I say Black body? please explain from which direction the sun is Blackbody?

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Hi guys, today's second class(EMI lecture 3) is cancelled due to internet issues.

Plz solve this one

Kisi n iit jodhpur freeze kiya h kya