| ⇦ | 
| ⇨ |
Light with an energy flux of 25×10⁴ Wm⁻² falls on a perfectly reflecting surface at normal incidence. If the surface area is 15 cm², the average force exerted on the surface is
Options
(a) 1.25 x10⁻⁶ N
(b) 2.50 x10⁻⁶ N
(c) 1.20 x10⁻⁶ N
(d) 3.0 x10⁻⁶ N
Correct Answer:
2.50 x10⁻⁶ N
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - Assuming the sun to have a spherical outer surface of radius r
- The half-life of a radioactive substance is 30 min. The time (in minutes) taken
- The range of voltmeter is 10V and its internal resistance is 50Ω.
- A copper disc of radius 0.1 m is rotated about its centre, with 10 revolutions
- An object is 8 cm high. It is desired to form a real image 4 cm high at 60 cm from
Topics: Electromagnetic Waves
(28)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Assuming the sun to have a spherical outer surface of radius r
- The half-life of a radioactive substance is 30 min. The time (in minutes) taken
- The range of voltmeter is 10V and its internal resistance is 50Ω.
- A copper disc of radius 0.1 m is rotated about its centre, with 10 revolutions
- An object is 8 cm high. It is desired to form a real image 4 cm high at 60 cm from
Topics: Electromagnetic Waves (28)
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