Light with an energy flux of 25 x 10* Wm-²falis on a perfectly reflecting surface at normal incidence. If the surface area is 15 cm², the average force exerted on the surface is:

College Physics
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Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Light with an energy flux of 25x 104 Wm-²fals on
a perfectly reflecting surface at normal incidence. If
the surface area is 15 cm², the average force exerted
on the surface is:
(1) 1.25x 10-6N
2.50 x 10-6 N
(2
(3) 1.20x 10-6N
(4) 3.0x 10-6 N
Transcribed Image Text:Light with an energy flux of 25x 104 Wm-²fals on a perfectly reflecting surface at normal incidence. If the surface area is 15 cm², the average force exerted on the surface is: (1) 1.25x 10-6N 2.50 x 10-6 N (2 (3) 1.20x 10-6N (4) 3.0x 10-6 N
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