The momentum of a photon is:
Correct answer: D. hf/c
- A. mv
- B. mc
- C. hf
- D. hf/c
Explanation
The momentum of a photon is given by the formula p = hf/c, where h is Planck's constant, f is the frequency of the photon, and c is the speed of light. This formula can be derived from the wave nature of light.
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Atoms emit or absorb light at specific wavelengths because electrons occupy quantized energy levels and change levels by absorbing or releasing photons. The topic covers emission and absorption spectra, spectral series, hydrogen’s line spectrum, energy-level transitions, and the relation between wavelength, frequency and photon energy.
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