A. 8.25 x 10-19J
B. 5.28 x 10-19J
C. 5.28 x 1019J
D. 8.25 x 1019J
Correct Answer:
Option B – 5.28 x 10-19J
Explanation
Atomic emission and absorption of energy is usually in packets referred to as photon or quantum of energy of magnitude E =hf, where f is the frequency and h is the Planck constant
Energy emitted = hf
= 6.6 x 10-34 x 8.0 x 10-14
= 5.28 x 10-19J
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