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The energy associated with the emitted photon when a mercury atom changes from one state...

Physics
JAMB 2006

The energy associated with the emitted photon when a mercury atom changes from one state to another is 3.3 ev. calculate the frequency of the photon.


[e = 1.6 x 10-19c; h = 6.6 x 10-34js]

  • A. 1.3 x 10-15 Hz
  • B. 3.1 x 1052 Hz
  • C. 3.2 x 10-53 Hz
  • D. 8.0 x 1014 Hz
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Correct Answer: Option D
Explanation

E = hf
f = (E)/h
∴ f = (3.3 x 1.6 x 10-19)/6.6 x 10-34
= 0.8 x 1015 = 8.0 x 1014 Hz

There is an explanation video available below.


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Explanation Video

Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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