6 S1 and S2ate two sound sources of frequencies 338HZ and 342Hzrespectively placed at a large distance apart The velocity - Physics - Electromagnetic Waves

Question

6 S1 and S2ate two sound sources of frequencies 338HZ and
342Hzrespectively placed at a large distance apart The velocity
with which an observer should move from s2 to s1 so that he may
hear no beats will be ---------(velocity of sound in air=340m/s)

Neha Gupta · Accepted Answer

Actual frequency of the first source is 338 Hzactual frequency of
the second source is 342 Hz apparent frequency of the sound when
source is at rest and listner is moving is at rest f =
v-vlv×f0v is the velocity of soundvl is the velocity of
listnerfor source s1, listner is moving towards the s1f1 =
v+vlv×338for source s2 , listner is moving away from the
sourcef2 =v-vlv×342for no beat frequency f1 -f2 = 0
v+vlv×338-v-vlv×342= 0v+vlv×338 =
v-vlv×342vi = 170 m/s

6.S1 and S2ate two sound sources of frequencies 338HZ and 342Hzrespectively placed at a large distance apart.The velocity with which an observer should move from s2 to s1 so that he may hear no beats will be ---------(velocity of sound in air=340m/s)