(A) : A small metal ball is suspended in a uniform electric field with an insulated thread. If high energy X-ray beam falls on the ball, the ball will be deflected in the electric field.
(R) : X-rays emits photoelectron and metal becomes negatively charged.

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'A' is true and 'R' is false

Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A'

Both 'A' and 'R' are true and 'R' is the correct explanation of 'A'.

'A' is false and 'R' is true

answer is C.

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Detailed Solution

When x-rays incident on the metal ball electrons are ejected out of the ball and the ball becomes positively charged and deflected in the direction of the field.

So the assertion is true and the reason is false

The correct option is C

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