Find the temperature of a black body if its spectrum has a peak at :- `lambda_max` = 700 nm (visible)

Find the temperature of a black body if its spectrum has a peak at :- lambda_max = 3 cm (microwaves region)

Find the temperature of a black body if its spectrum has a peak at :- lambda_max = 3m (FM radio wave) (b = 2.897 xx 10^-3 mk )

The spectrum from a black body radiation is a

The power radiated by a black body is P, and it radiates maximum energy around the wavelength lambda_(0) . If the temperature of the black body is now changed so that it radiates maximum energy around a wavelength 3lambda_(0)//4 , the power radiated by it will increase by a factor of

If the temperature of any ideal black body is halved, then the wavelength of maximum emission will be

The temperature of a black body is gradually increased. The colour of the body will change from

What is the temperature at which a black body radiates heat at the rate of one kilowatt per unit area ? (Stefan 's constant sigma = 5.7 xx 10^(-8) S.Iunits)

Earth's mean temperature can be assumed to be 280K. How will the curve of blackbody radiation look like for this temperature? Find out lambda_max , in which part of the electromagnetic spectrum, does this value lie?