Question

A laser beam of visible light is shined perpendicular to a magnetic field. Which of the following may happen

• A. The beam will get deflected
• B. The intensity of the beam gets changed
• C. The beam remains undeflected and intensity unchanged
• D. The beam’s intensity remains unchanged but the beam gets deflected.

Answer 1

The correct option is C

The beam remains undeflected and intensity unchanged

A magnet can affect a moving charge. Electromagnetic waves are unaffected by a magnetic field. Hence the beam remains undeflected and the intensity unchanged.