If the work function for a certain metal is 3.2×10−19joule and it is illuminated with light of frequency 8×1014Hz. The maximum kinetic energy of the photo-electrons would be (h=6.63×10−34Js
A
2.1×10−19J
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B
8.5×10−19J
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C
5.3×10−19J
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D
3.2×10−19J
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