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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
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A particle moves in a straight line with a constant acceleration
- A projectile is thrown in the upward direction making an angle of 60°with the horizontal
- If a small sphere is let fall vertically in a large quantity of still liquid of density
- A resistor 30Ω, inductor of reactance 10 Ω and capacitor of reactance 10 Ω
- A radioactive substance decays to 1/16th of its initial activity in 40 days.
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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