56 A light source emitting a light of frequency 6 1015 Hz is

Last updated: 6/25/2023

56 A light source emitting a light of frequency 6 1015 Hz is moving away from an observer with a speed of 4 m sec Then the apparent change in the frequency of light as observed by the observer will be 1 8 107 Hz 3 2 107 Hz 2 4 107 Hz 4 8 108 Hz