Question Answers

Sahay Sir > Question Answers > Arihant Physics by D.C Pandey > Volume 1 > Chapter 17 - Wave Motion > A source of sound of frequency 600 Hz is placed inside water. The speed of sound in water is 1500 m/s and in air it is 300 m/s. The frequency of sounds recorded by an observer who is standing in air is

A source of sound of frequency 600 Hz is placed inside water. The speed of sound in water is 1500 m/s and in air it is 300 m/s. The frequency of sounds recorded by an observer who is standing in air is

Speed of transverse wave in a string of density 100kg/m^(3) and area of cross-section 10mm^(2) under a tension of 10^(3) N is