The vibrations of four air columns are represented in the adjoining figures. The ratio of frequencies np : nq : nr : ns is The vibrations of four air columns are represented in the adjoining figures. The ratio of frequencies np : nq : nr : ns is October 31, 2020 Category: Cengage NEET by C.P Singh , Chapter 17 - Sound Waves , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related