wein's law

[jonathan chi 1J]

Will we have to know what Wein's Law is for the midterm? If so, can someone explain what it is?

[tashyavakil 2K]

I saw that in the textbook too but I believe we don't have to know it. When Professor Lavelle was discussing black body radiation in class, he mentioned that the textbook had a lot more information on it but that we weren't going to be studying it as in-depth as the textbook goes. I would just rely on what is in the lectures and achieve hw.

[505994906]

I also don't believe that we must know Wein's Law. But if so it is important to first look at the equations which is λ_max = b / T
λ_max is the wavelength at which the radiation is most intense.
b is a constant called Wien's displacement constant, approximately equal to 2.898 × 10^(-3) meters·Kelvin.
T is the absolute temperature of the black body radiator in Kelvin.
This equation tells us that hotter objects emit more radiation at shorter wavelengths, and cooler objects emit more radiation at longer wavelengths.