X- rays, gamma rays and microwaves travelling in vacuum have

Options

A. same wavelength but different velocities
B. same frequency but different velocities
C. same velocity but different wavelengths
D. same velocity and same frequency

Answer

C

Explanation

In vacuum X - rays , gamma rays and microwaves travelling with same velocity , i.e., with the velocity of light `c (= 3 xx 10^(8)` m/s ) but different wavelengths .