Small amplitude progressive wave in a stretched string has a speed of 100cm/s. and frequency 100 Hz. The phase difference between two points 2.75 cm apart on the string in radians, is is Small amplitude progressive wave in a stretched string has a speed of 100cm/s. and frequency 100 Hz. The phase difference between two points 2.75 cm apart on the string in radians September 13, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 16 - Waves and Acoustics , Facebook Messenger WhatsApp Share this:TwitterFacebook Related