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Monday, 14 January 2013

P.No.5.1:- A tiny laser beam is directed from the Earth to the Moon. If the beam is to have a diameter of 2.50m at the moon, how small must divergence angle be for the beam? The distance of Moon from the Earth is 380000000m

P.No.5.1:- A tiny laser beam is directed from the Earth to the Moon. If the beam is to have a diameter of 2.50m at the moon, how small must divergence angle be for the beam? The distance of Moon from the Earth is 380000000m 

 Solution:-
Given Data:-
          Length of arc  =  S  = 2.50m              (Diameter of beam)


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