When photons with 72 electron volts of energy strike a, Physics

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When photons with 72 electron volts of energy strike a

Question: When photons with 7.2 electron volts of energy strike a certain metal surface, it is found that the stopping potential is 1.7 electron volts.

Part A: The work function of the metal surface is _________eV.

Please provide any help for above question is greatly appreciated!

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Physics: When photons with 72 electron volts of energy strike a

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Physics: When photons with 72 electron volts of energy strike a

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