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Statement I: A small metal ball is suspended in a uniform electric field with the help of an insulated thread. When a high energy X-rays beam falls on the ball, then the ball will be defected in the direction of electric field.
Statement II: Photoelectrons are emitted from metal surface when X-rays fall on it.

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Statement-I is incorrect and statement-II is correct

Both statements I and II are correct

Both statements I and II are incorrect

Statement-I is correct and statement-II is incorrect

answer is A.

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Detailed Solution

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

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