Intensity level of intensity l is 30 dB. The ratio I/I0 is (where I0 is the threshold of hearing) Intensity level of intensity l is 30 dB. The ratio I/I0 is (where I0 is the threshold of hearing) November 1, 2020 Category: Arihant Physics by D.C Pandey , Chapter 16 - Waves , Volume 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related