
E=λhCP=λh⇒P=CE
Initial momentum of light when falls on a perfectly reflecting surface.
Pi=CE
When it is reflected momentum is in opposite direction
Pf=−CE
Net momentum =Pf−Pi
=−CE−CE
=−C2E
ΔP=C2E
A radiation of energy E falls normally on a perfectly reflecting surface. The momentum transferred to the surface is (C = Velocity of light)
Held on 30 Apr 2015 · Verified 9 Jul 2026.
CE
C2E
C22E
C2E
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