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Q.

Caluculate the energy of one mole of photons of radiations whose frequency is  5×1014 Hz

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a

199.51 J/mole

b

19.951KJ/mole

c

199.51KJ/mole

d

19.951J/mole

answer is C.

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Detailed Solution

E=nhϑ=6.023×1023×6.626×10-34×5×1014×10-3=199.51KJ/mole

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