Exam-style question
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Which equation relates the energy of a photon to its frequency?.
- A.E = mc^2
- B.E = hf
- C.E = mv^2
- D.E = pV
Model answer
What a good answer should say
- E = hf
Explanation
Why this works
The equation E = hf describes the relationship between the energy (E) of a photon and its frequency (f), where h is Planck's constant.
Common mistake
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