Question

What is the ratio of speed of $\gamma$ rays and $X-rays$ ?

• A. $1$
• B. $<1$
• C. $>1$
• D. depends on the ratio of their wavelengths

Answer 1

Answer: (A)

$1$

Both of the $\gamma$ rays and $X-rays$ are electromagnetic radiations which travel with speed of light.

So the ratio of speed is $1$.