Question

Which of the following are electromagnetic waves?

• A. $\alpha$ $rays$
• B. ${\beta }^{+}$ $rays$
• C. ${\beta }^{-}$ $rays$
• D. $gamma$ $rays$

Answer 1

The correct option is D $gamma$ $rays$

Electromagnetic rays would remain un-deflected when passed through an electric or magnetic field (because they are charge-less).
Only gamma rays satisfy this condition.