A sound detector is moving with a constant velocity towards a stationary sound source. The source emits a beep of sound of frequency f=262 Hz that propogates with speec c=330m/s. The detector detects the beep of sound over a distance L=78 m and registers a frequency f=275 Hz. Find thhe duration of the beep emitted by the source.

A source emits a sound of frequency of 400 Hz , but the listener hears it to be 390 Hz . Then

A source emits a sound of frequency of 400 Hz , but the listener hears it to be 390 Hz . Then

A rocket is moving at a speed of 200m/s towards a stationary target. While moving, it emits a wave of frequency 1000Hz. Calculate the frequency of the sound as detected by the target. (Velocity of sound in air is 330m/s )

A small source of sound oscillates in simple harmonic motion with an amplitude of 17 cm. A detector is placed along the line of motion of the source. The source emits a sound of frequency 800 Hz which travels at a speed of 340 ms^-1 If the width of the frequency band detected by the detector is 8 Hz, find the time period of the source.

A source of sound is movig with a speed 220 m(s)^-1 towards a stationary target.While moving,it emits a wave of frequency 1000 Hz.Some of the sound reaching the target get reflected back to the source as echo.Calculate the (i)frequency of sound as detected by the target and (ii)the frequency of echo as detected by the source?

A source whistling a sound of frequency 450 Hz moves towards a stationary listener with a speed of 33 m/s. If velocity of sound is 333 m/s, then find frequency of sound heard by this listener.

A car is travelling with a velocity of 40 m//s towards a source of sound of frequency 1000 Hz. If sound velocity is 330 m//s , then apparent frequency heard by the observer (in Hz) is

A source of sound of frequency 500 Hz is moving towards an observer with velocity 30 m/s.The speed of the sound id 330 m/s.The frequency heard by the observer is

A source of sound of frequency 500 Hz is moving towards an observer with velocity 30 m/s . The speed of sound is 330 m/s . the frequency heard by the observer will be