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Dual Nature of Radiation and Matter question

2006 · Q147
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Dual Nature of Radiation and Matter question

2006 · Q147

NEETPhysicsDual Nature of Radiation and MatterMCQ+4 / −1
The momentum of a photon of energy 1 MeV in kg m/s will be
  1. A
    5 ×\times× 10−-−22
  2. B
    0.33 ×\times× 106
  3. C
    7 ×\times× 10−-−24
  4. D
    10−-−22
View written solutionFree

Correct answer: A

Momentum of photon p = E/c

∴\therefore∴ p = 1×106×1.6×10193×108{{1 \times {{10}^6} \times 1.6 \times {{10}^{19}}} \over {3 \times {{10}^8}}}3×1081×106×1.6×1019​

= 5 ×\times× 10−-−22

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