Assertion: Cyclotron does not accelerate.
Reason: Mass of the electron is very small.

Options

A. If both the assertion and reason are true and reason is a true explantion of the assertion.
B. If both the assertion and reason are true but the reason is not the correct explantion of the assertion.
C. If the assertion is true but reason false
D. If both the assertion and reason are false.

Answer

A

Explanation

Cyclotron is suitabel for acceterating heavy particles like protons, `alpha` particles etc, and not for electrons because fo low mass. Because electrons acquire very high velocities very near to velocity of light an dappreciable variartion in their mass, occurs.