JEE Main 201910 Apr, Evening shiftPhysicsMediumOscillations and Waves185× since 2002
A source of sound S is moving with a velocity of 50 m/s towards a stationary observer. The observer
measures the frequency of the source as 1000 Hz. What will be the apparent frequency of the source when it
is moving away from the observer after crossing him? (Take velocity of sound in air is 350 m/s)