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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.
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Topics: Electromagnetic Waves
(28)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The Davisson- Germer experiment is the direct evidence of
- The number of photo electrons emitted for light of a frequency v
- Two bodies of masses m₁ and m₂ are initially at rest at infinite distance apart
- The potential of a large liquid drop when eight liquid drops are combined is 20 V.
- A body of mass 3 kg is under a constant force which cause a displacement
Topics: Electromagnetic Waves (28)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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