In Compton Effect, the value of h/moc is given by:
Correct answer: B. 2.43 x 10^-12 m
- A. 1.43 x 10^-11 m
- B. 2.43 x 10^-12 m
- C. 2.56 x 10^-12 m
- D. 3.46 x 10^-6 m
Explanation
Explanation: This value is a constant and is given as: = h / moc = 6.63 × 10-23 / (9.1093837015 × 10-31kg) (3× 108 ms-1) = 2.43 × 10-12m
This question appeared on the UHS MDCAT 2009 paper, which you can sit online with every answer explained.
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The particle model treats light as photons with energy E equals hf and momentum related to wavelength. Questions involve the photoelectric effect, work function, threshold frequency, stopping potential and photon energy, while distinguishing particle behaviour from the wave description of interference and diffraction.
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