A parallel beam of light is incident normally on a plane surface absorbing 40% of light & reflecting the rest. if power of incident beam=10W,find force exerted by it on the surface. sir plz answer my pending questions too.

Asked by Viresh Mohan | 24th Jan, 2014, 09:38: PM

Expert Answer:

Answered by  | 24th Jan, 2014, 11:39: PM

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