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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
- A thin ring of radius R meter has charge q coulomb uniformly spread on it
- In a coil having e.m.f. of 8 V induced for 0.05 s. The value of current changes
- The transverse nature of electromagnetic waves is proved by which of the following?
- Point masses m₁ and m₂ are placed at the opposite ends of a rigid rod of length L,
- An α-particle and a proton travel with the same velocity in a magnetic field
Topics: Electromagnetic Waves (28)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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