Two point sources X and Y emit waves of same frequency and speed but Y lags in phase behind X by 2πd radian. If there is a maximum in direction D the distance XO using n as an integer is given by Two point sources X and Y emit waves of same frequency and speed but Y lags in phase behind X by 2πd radian. If there is a maximum in direction D the distance XO using n as an integer is given by November 17, 2020 Category: Cengage NEET by C.P Singh , Chapter 16 - Wave Motion and Waves on a String , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related