Question

A point source of sound emiting sound of frequency 700 Hz and observer starts moving from a point along mutually perpendicular directions with velocity 20 m/s and 15 m/s respectively. If change in observed frequency by observer is 10x Hz then calculate 'x'. [speed of sound in 334 m/sec]

Answer 1

please see attached file...

Answer 2

$\huge\red{heya!!!}$