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It is observed that when the cap of an uncharged electroscope is irradiated with light of high frequency, the leaf of electroscope rises. Explain this observation

      

It is observed that when the cap of an uncharged electroscope is irradiated with light of high frequency, the leaf of electroscope rises. Explain this observation

  

Answers


John
When light falls on the cap of the electroscope some electrons are dislodged from the surface leaving a net positive charge on the electroscope. Hence the rod and leaf repel and leaf rises
johnmulu answered the question on February 21, 2017 at 13:13


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