(21 a stationary source (see figure below) emit. if an oserver ans. (d) emits sound waves of frequency j towards a well. if an oh moving with speed u in a direc

(21 A stationary source (see figure below) emit. If an Oserver Ans. (d) emits sound waves of frequency J towards a well. If an oh moving with speed u in a direction perpendicular to the 9 wall. measures a frequency f -f at the instant 8 shown, then u is related to the speed of sound V as Source Wall 30 30 Observer (a) V (c) V/4 (b) V/2 (d) V/8 JAM PH-2014 Ans. 2.White light isi innid density