Question on: JAMB Physics - 2003
An electron makes a transition from a certain energy level Ek to the ground state E0. If the frequency of emission is 8.0 x 1014Hz The energy emitted is
A
8.25 x 10-19J
B
5.28 x 10-19J
C
5.28 x 1019J
D
8.25 x 1019J
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Correct Option: B
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 plancks constant
Energy emitted = hf
= 6.6 x 10-34 x 8.0 x 10-14
= 5.28 x 10-19J
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