Question
A radio station is emitting the radiations of frequency ( 2 times 10^{4} mathrm{H} z ). If its frequency is doubled,

A radio station is emitting the radiations of frequency ( 2 times 10^{4} mathrm{H} z ). If its frequency is doubled,
(A) wavelength will be doubled
(B) energy per quanta will be doubled
(C) wave number will be halved
(D) all of these
Solution

(B) energy per quanta will be doubled