X-rays, gamma rays and microwaves travelling in vacuum have | PHYSICS - ELECTROMAGNETIC SPECTRUM | SolveeIt | Solveeit

Today, August 19

Question

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

A

Same wavelength but different velocities

B

Same frequency but different velocities

C

Same velocities but different wavelengths

D

Same velocities and same frequency

Answer

Same velocities but different wavelengths

Explanation

Solution

: In vacuum X – rays, gamma rays and microwaves travel with same velocity, i.e., with the velocity of light $c( = 3 \times 10^{8}ms^{- 1})$ but have different wavelengths.