A metal’s work function is 3.8KJ. Photons strike metal’s surface w – McqOptions

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1.	A metal’s work function is 3.8KJ. Photons strike metal’s surface with an energy of 5.2 KJ. what’s the kinetic energy of the emitted electrons?
A.	3.8 KJ
B.	5.2 KJ
C.	9 KJ
D.	1.4 KJ
Answer» E.

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