• Subject:


  • Topic:


A black body is at a temperature of 5760 K. The energy of radiation emitted by the body at wavelength 250 nm is U1, at wavelength 500nm is U2 and that at 1000nm is U3 Wien's constant, b=2.88 x 108 nmK. Which of the following is correct?

(a)U3=0       (b)U1>U2

(c)U2>U1      (d)U1=0