If the maximum intensity of radiation for a black is found at 1.45 `mum`, what is the temperature of radiating body? ( Wien's constatnt `=2.9xx10^(-3)`mk)

If the maximum intensity of radiation for a black is found at 2.65 mu m , What is the temperature of the radiating body ? (Wein s constant =2.9 xx 10^(-3) mK )

The solar radiation spectrum reveals that the intensity coesponding to a wave- length of 4750 A^(0) is maximum. Estimate the surface temperature of the sun (Given Wien 's constant= 2.89 xx 10^(-3) m-K )

The wavelenght of maximum intensity of radiation emitted by a star is 289.8 nm. The radiation intensity of the star is (Stefan's constant = 5.67 xx 10^(-8) Wm^(-2)K^(-4) , constant b= 2898 mumK )

True statements among the following are (A) Number of wave generated by the electrons in the 5th orbit is five (B) As the temperature increases maximum intensity of radiation emitted by the black body shifts towards lower wavelength side (C) As the intensity of incident radiation increases kinetic energy of photo electrons increases

A black body emits radiations of maximumm intensity at a wavelength of 5000 A^(0) , when the temperature of the body is 1227^(@) C. If the temperature of the body is increased by 1000^(@) C, the maximum intensity of emitted radiation would be observed at

The wavelength of the radiation emitted by a black body is 1 mm and Wien's constant is 3xx10^(-3) mK. Then the temperature of the black body will be