Question

When radiation emitted by a radioactive substance is subjected to a magnetic field, alpha-particles describe a circle in the clockwise direction

• A. beta and gamma particles will also be deflected in the same direction
• B. gamma rays will be deflected to describe a circle in the counter clockwise direction but beta particles will not be deflected
• C. gamma rays will not be deflected and beta rays will move in a circular path in the counter clockwise sense
• D. beta and gamma rays will describe a circle in the counter clockwise sense

Answer 1

The correct option is C gamma rays will not be deflected and beta rays will move in a circular path in the counter clockwise sense

Gamma rays are uncharged, hence they would pass through the field un-deflected.
Beta rays are negatively charged, and since alpha rays are positively charged and start moving in a clockwise manner.

The Beta rays being negatively charged would move in the anti clock wise manner.