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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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Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If a steel wire of length l and magnetic moment M is bent into a semicircular arc,
- A beam of light consisting of red, green and blue colours is incident on a right
- Three resistances P,Q,R each of 2Ω and an unknown resistances S form the four arms
- The electrons are emitted in the photoelectric effect from a metal surface
- If radius of earth’s orbit is made 1/4, the duration of a year will become
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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