The momentum of a photon of energy 1 MeV in kg m/s will be

The Momentum Of A Photon Of Energy 1 Mev In Physics Question

The momentum of a photon of energy 1 MeV in kg m/s will be

Options

(a) 5 x 10⁻²²
(b) 0.33 x 10⁶
(c) 7 x10⁻²⁴
(d) 10⁻²²

Correct Answer:

5 x 10⁻²²

Explanation:

Energy of photon E = 1 MeV

Momentum of photon p = E / c

p = E / c = (1 × 10⁶ × 1.6 × 10⁻¹⁹J) / 3 × 10⁸ ms⁻¹

= 0.53 × 10⁻²¹ = 5 × 10⁻²² kg m/s.

Related Questions:

  1. A wire in the form of a circular loop of one turn, carrying a current, produces
  2. The coefficient of mutual inductance of two coils is 6 mH. If the current flowing
  3. The magnetic field in a certain region of space is given by B =8.35×10⁻² Î T.
  4. “On flowing current in a conducting wire the magnetic field is produced around it”.
  5. What is the voltage gain in a common-emiiter amplifier, when input resistance is 4 Ω

Topics: Dual Nature of Matter and Radiation (150)
Subject: Physics (2479)

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*