1.

At a pointin an interference pattern, the two interfering coherent waves of equal intensity I_(0) have phase difference 60^(@). What will be the resultant intensity at that point?

Answer»

Solution :RESULTANT INTENSITY, `I=2I_(0)(1+cos phi)`
`=2I_(0)(1+cos60^(@)) = 2I_(0)(1+1/2) = 3I_(0)`


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