Question

A photon can be deflected by -

• A. Only electric field
• B. Only magnetic field
• C. Both electric and magnetic field
• D. Neither by electric field nor by magnetic field

Answer 1

The correct option is D Neither by electric field nor by magnetic field

By Lorentz force,

$\overrightarrow{F}=q(\overrightarrow{E}+\overrightarrow{v}\times \overrightarrow{B})$

As photon is neutral in nature $i.e.q=0\Rightarrow \overrightarrow{F}=0$

Therefore, it is neither deflected by electric field nor by magnetic field.

Hence, option $\left(D\right)$ is the correct answer.