| ⇦ |
| ⇨ |
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: - Slope of PV and V for an isobaric process will be
- Two points are located at a distance of 10 m and 15 m from the source of oscillation
- A radioactive substance decays to 1/16th of its initial activity in 40 days.
- If the self inductance of 500 turn coil is 125 mH, then the self inductance
- Large transformers, when used for some time, become hot and are cooled by circulating
Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Slope of PV and V for an isobaric process will be
- Two points are located at a distance of 10 m and 15 m from the source of oscillation
- A radioactive substance decays to 1/16th of its initial activity in 40 days.
- If the self inductance of 500 turn coil is 125 mH, then the self inductance
- Large transformers, when used for some time, become hot and are cooled by circulating
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