Following graph shows the correct variation in intensity of heat radiations by black body and frequency at a fixed temperature

Options

A.
B.
C.
D.

Answer

A, C

Explanation

According to Wien's law `lambda_(m) prop (1)/(T) implies v_(m) prop T`. As the temperature of body increases, frequency corresponding to maximum energy in radiation `(v_(m))` increases.
Also area under the curve `intE_(lambda) dlambda prop int E_(v) "dv" prop T^(4)`