Science, asked by bhatiashabbir9966, 1 year ago

Why cs and k are used in photoelectric cell?

Answers

Answered by BigSmoke
11
The reason behind using of Cs and K in Photoelectric cell is that these two are the metals having low ionisation energy.
It means that if you give a little energy to these metals it will ionise and emit the Photon easily.

Hope you get your answer.
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