Question

What is the speed of $\gamma -rays$? Are they deflected by an electrostatic field?

• A. $3\times {10}^{8}m{s}^{-1}$, yes
• B. $3\times {10}^{8}m{s}^{-1}$, no
• C. $233m{s}^{-1}$, yes
• D. $233m{s}^{-1}$, no

Answer 1

The correct option is B

$3\times {10}^{8}m{s}^{-1}$, no

(a) The speed of $\gamma -rays$ is equal to the speed of light in vacuum, i.e $3\times {10}^{8}m{s}^{-1}$.
(b) No, because they are electromagnetic waves having no charge.