An observer starts moving with uniform acceleration `a` towards a stationary sound source emitting a whistle of frequency `n`. As the observer approaches source, the apparent frequency, head by the observer varies with time as

An observer starts moving with unifrom acceleration a towards a stationary sound soure of frequency f_(o) . As the observer approaches the source ,the apparent frequency f heard by the observer varies with time t as

An observer starts moving with unifrom acceleration a towards a stationary sound soure of frequency f_(o) . As the observer approaches the source ,the apparent frequency f heard by the observer varies with time t as

If an observer is moving with uniform velocity v to wards a stationary source of frequency n, and if the velocity of sound in the medium is V, then the apparent change in the frequency of the sound, heard by the observer, is -

An observer approaches a stationary sound source 1000 Hz at twice the speed of sound. What frequency does the observer hear?

The source producing sound and an observer both are moving along the direction of propagation of sound waves. If the respective velocities of sound, source and an observer are v, v_(s) and v_(0) , then the apparent frequency heard by the observer will be (n = frequency of sound)

An observer is moving towards the stationary source of sound, then

A source of sound is moving with a velocity of 50 ms ^(-1) towards a stationary observer.The observer measures the frequency of sound as 500 Hz.The apparent frequency of sound as heard by the observer when source is moving away from him with the same speed is (Speed of sound at room temperature 350 ms ^(-1)