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Photon of frequency ν has a momentum associated with it. If c is the velocity of light, the momentum is
Options
(a) hν/c
(b) ν/c
(c) hνc
(d) hνc²
Correct Answer:
hν/c
Explanation:
Energy of a photon E = hʋ —–(i)
Also, E = pc —(ii)
Where p is the momentum of a photon
From (i) and (ii), we get
hʋ = pc ⇒ p = hʋ / c.
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Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Two blocks of masses m₁=4 kg and m₂= 2kg are connected to the ends of a string
- If in a nuclear fusion process, the masses of the fusing nuclei be m₁ and m₂
- The vector sum of two forces is perpendicular to their vector difference. In that case,
- Maximum velocity of the photoelectron emitted by a metal is 1.8×10⁶ ms⁻¹.
- Radii of curvature of a converging lens are in the rato 1:2. Its focal length
Topics: Dual Nature of Matter and Radiation (150)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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