Assertion: A small metal ball is suspended in a uniform magnetic field with the help of an isulated thread. When a high energy `X` rays beam falls on the ball. Then the ball will be defected in the direction of electric field.
Reason: The ball will oscillate in the field.

Options

A. if both Assertion and Reason are true and the Reason is correct explanation of the Assertion.
B. If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion.
C. if Assertion is true, but the Reason is false.
D. if both Assertion and Reason are false

Answer

c

Explanation

We know, that when high energy `X`-rays beam falls on metallic ball, then ball will emit the photoelectrons, so a ball will acquire positive charge because of it the ball will be deflected in the direction of electric field till equilibrium is reached.