The work function of a metal is 4.2 eV. If a radiation of 2000oA falls – InterviewSolution

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1.	The work function of a metal is 4.2 eV. If a radiation of 2000oA falls on the metal, then the kinetic energy of the fastest photoelectron is:
Answer» The work function of a metal is 4.2 $e V$ . If a radiation of $2000 o A$ falls on the metal, then the kinetic energy of the fastest photoelectron is:

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