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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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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A 120 m long train is moving in a direction with speed 20 m/s.A train B moving
- A source of unknown frequency gives 4 beats/s, when sounded with a source harmonic
- A circular disc of radius 0.2 meter is placed in a uniform magnetic field of induction
- The electric vector vibration of an electromagnetic wave is given by
- A glass flask weighing 390 g having internal volume 500 cc just floats
Topics: Electromagnetic Waves (28)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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