8 A siren emitting a sound of frequency 800 Hz moves away

Last updated: 6/21/2023

8 A siren emitting a sound of frequency 800 Hz moves away from an observer towards a cliff at a speed of 15 ms 1 Then the frequency of sound that the observer hears in the echo reflected from the cliff is Take velocity of sound in air 330 ms NEET 2016 1 885 Hz 3 800 Hz 2 765 Hz 4 838 Hz