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.

Question

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. (A) If both statements are true and statement II is correct explanation of statement I. (B) If both statements are true but statement II is not the correct explanation of statement I. (C) If statement I is true but the statement II is false. (D) If both statements are false.

Tardigrade Admin · Accepted Answer

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.