A line source emits a cylindrical expanding wave. If the medium absorbs no energy then the amplitude will vary with distance r from the source as proportional to A line source emits a cylindrical expanding wave. If the medium absorbs no energy then the amplitude will vary with distance r from the source as proportional to December 6, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related