Question

If $v_s$, $v_x$ and $v_m$ are the speed of soft gamma rays, X-rays and microwaves respectively in vacuum, then

• A. $v_s>v_x>v_m$
• B. $v_s<v_x<v_m$
• C. $v_s>v_x<v_m$
• D. $v_s=v_x=v_m$

Answer 1

Answer: (D)

$v_s=v_x=v_m$

$Answer:-$ D

All have different frequency and wavelength but since all are electomagnetic waves so have same speed equal to that of light ($c=3\times {10}^{8}m/s$).