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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
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The time period of a thin bar magnet in Earth’s magnetic field is T
- The fluctuation in the input voltage of 200 V to a domestic circuit is +10V
- A tuning fork A produces 4 beats per second with another tuning fork B of frequency
- A plane electromagnetic wave of frequency 20 MHz travels through a space along
- If in a nuclear fusion process, the masses of the fusing nuclei be m₁ and m₂
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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