A sound sources, detector and a movable wall are arranged as shown in figure. In this arrangement
Channel: Doubtnut
Date: 2020-04-12

A sound sources, detector and a movable wall are arranged as shown in figure. In this arrangement detectir us detacting the maximum intensity. If the speed of sound is `330 m//s` in air and frequency of source is `660 Hz`, then find the minimum distance by which the wall should be moved away from source, so that detector dtects minimmum intensity.   img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/RES_WFPM_PHY_XI_C06_E01_046_Q01.png" width="80%"