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प्रश्न
What happened to the electroscope when ultraviolet light fell on the zinc plate?
पर्याय
It gradually lost its negative charge
It became the collector plate
It gradually gained negative charge
It produced current in an evacuated glass tube
MCQ
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उत्तर
The electroscope gradually lost its negative charge during ultraviolet illumination. This indicated that negative charge was leaving the connected zinc plate.
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