Two point sources X and Y emit waves of same frequency and speed but Y lags in phase behind X by `2 pid` radian. If there is a maximum in direction D, the distance XO using n as an integer is given by A. `lambda/2(n-l)`B. `lambda(n+l)`C. `lambda/2(n+l)`D. `lambda(n-l)`

Two point sources X and Y emit waves of same frequency and speed but Y

1.	Two point sources X and Y emit waves of same frequency and speed but Y lags in phase behind X by `2 pid` radian. If there is a maximum in direction D, the distance XO using n as an integer is given by A. `lambda/2(n-l)`B. `lambda(n+l)`C. `lambda/2(n+l)`D. `lambda(n-l)`
Answer» Correct Answer - B `phi=(2pi)/lambda Deltax-2pil` `2pin=(2pi)/lambda(OX)-2pil` `OX=lambda(n+l)`

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Two point sources X and Y emit waves of same frequency and speed but Y lags in phase behind X by `2 pid` radian. If there is a maximum in direction D, the distance XO using n as an integer is given by A. `lambda/2(n-l)`B. `lambda(n+l)`C. `lambda/2(n+l)`D. `lambda(n-l)`

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