A perfectly reflecting mirror of mass M mounted on a spring constitutes a spring-mass system of angular frequency 
such that 
with h as Planck's constant. N photons of wavelength 
strike the mirror simultaneously at normal incidence such that the mirror gets displaced by 
. If the value of N is x x 10 12 , then the value of x is_________.
[Consider the spring as massless]
Text Solution
Verified by Experts1
(1)
If v is speed of mirror just after absorption of photons
If 
is the maximum compression in the spring
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