| ⇦ | 
| ⇨ |
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: - A tuning fork of frequency x produces 4 beats with a source of 256 Hz and 8 beats
- If r denotes the distance between sun and the earth, then the angular momentum of the earth
- Which of the following is the function of the step-up transformer?
- A wire elongates by l mm when a load W is hanged from it. If the wire goes over
- A ball is dropped from a high rise platform at t = 0 starting from rest
Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A tuning fork of frequency x produces 4 beats with a source of 256 Hz and 8 beats
- If r denotes the distance between sun and the earth, then the angular momentum of the earth
- Which of the following is the function of the step-up transformer?
- A wire elongates by l mm when a load W is hanged from it. If the wire goes over
- A ball is dropped from a high rise platform at t = 0 starting from rest
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.
Share this page with your friends
Leave a Reply