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Question

If the work function for a certain metal is 3.2×1019 joule and it is illuminated with light of frequency 8×1014 Hz. The maximum kinetic energy of the photo-electrons would be (h=6.63×1034 Js

A
2.1×1019 J
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B
8.5×1019 J
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C
5.3×1019 J
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D
3.2×1019 J
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