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A small metal ball is suspended in a uni...

A small metal ball is suspended in a uniform electric field with the help of an insulated thread. If high energy X-ray beam falls on the ball, the ball will be deflected in the direction of the field.

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When a high-energy x-ray beam fails, it will knowk out electons from the small metal ball making it positively charged. Therefore, the ball will be deflected in the direction of electric field.
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