2.00 x 10-28J
1.30 x 10-28J
2.00 x 10- 29J
1.30 x 10-29J
Correct answer is A
A photon of energy E = hf
= 6.63 x 10-34 x 3 x 105
= 19.89 x 10-29
= 2.0 x 10-28J
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