Nuclear Physics and RadioactivityHard
Question
The number of photons (λ = 6630
) that strike per second on a a totally reflecting screen (as screen in figure), so that a force of 1N is exerted on the screen, is approximately
) that strike per second on a a totally reflecting screen (as screen in figure), so that a force of 1N is exerted on the screen, is approximately Options
A.1023
B.1027
C.1025
D.1026
Solution
F = 
⇒ F = 
⇒ F = 2npsin θ [n = number of photon]
⇒ 1N = 2(n)
,sin 30o n = 1027
⇒ F = ⇒ F = 2npsin θ [n = number of photon]
⇒ 1N = 2(n)
,sin 30o n = 1027Create a free account to view solution
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