Stopping potential Flashcards

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1
Q

Explain stopping potential

A

If a positive voltage is applied to the metal plate then the electrons have to do extra work to overcome the electrical potential energy, so the number of emitted electrons decreases and at the stopping potential Vs emission is, as the Ek of the electrons is 0.

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2
Q

Stopping Potential formula

A

eVs = hf - work function

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