Which one of the following is `v_(m) - T` graph for perfectly black body ? `v_(m)` is the frequency of radition with maximum intensity. T is the absolute temperature

Options

A. A
B. B
C. C
D. D

Answer

C

Explanation

Ac cording to Wein's displacement law `lambda_(m) T=b=` Wein constant
If `v_(m)` is the frequency corresponding to wavelength
`lambda_(m)` then `((c)/(v_(m)))T=b` or `v_(m) =(c)/(b)T, i.e., v_(m) prop T`
`:. V_(m)-T` graph is a straingth line shown by line C. Thuse, option (c) is true.