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caesium has a work function of 3 x 10-19J. the maximum energy of liberated electrons ...

caesium has a work function of 3 x 10-19J. the maximum energy of liberated electrons when it is illuminated by light of frequency 6.7 x 1014
HZ is?
[h = 6.6 x 1010-34Js]

A. 1.42 x 10-19J
B. 3.00 x 10-19J
C. 4.42 x 1010-19J
D. 7.42 x 10-19J




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