| ⇦ | 
| ⇨ |
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 hollow metal sphere of radius 10 cm is charged such that the potential on its surface
- How much work is required to carry a 6 μC charge from the negative terminal
- An alternating voltage of 220 V, 50 Hz frequency is applied across a capacitor
- Two bodies A and B having temperature 327° C and 427° C are radiating heat
- A machine gun fires 10 bullets/s,each of mass 10 g,the speed of each bullet
Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A hollow metal sphere of radius 10 cm is charged such that the potential on its surface
- How much work is required to carry a 6 μC charge from the negative terminal
- An alternating voltage of 220 V, 50 Hz frequency is applied across a capacitor
- Two bodies A and B having temperature 327° C and 427° C are radiating heat
- A machine gun fires 10 bullets/s,each of mass 10 g,the speed of each bullet
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