An observer rides with a sound source of frequency `f` and moving with velocity `v` towards a large vertical wall. Considering the velocity of sound waves as `c`, find :
(i) The number of waves striking the surface of wall per second
(ii) The wavelength of the reflected wave
(iii) The frequency of reflected wave as observed by observer.
(iv) Beat frequency heard by the observer.

A source of frequency n is moving with a uniform velocity v towards a stationary observer. If the velocity of sound is V, then the change in frequency would be -

A sound wave of frequency f travels horizontally to the right . It is teflected from a larger vertical plane surface moving to left with a speed v . the speed of sound in medium is c (a) The number of waves striking the surface per second is f(c + upsilon)/(c) (b) The wavelength of reflected wave is (c(c-upsilon))/(f(c+upsilon)) (c) The frequency of the reflected wave is f((c+upsilon))/((c+upsilon)) (d) The number of beats heard by a stationary listener to the left of the reflecting surface is (upsilon f)/(c - upsilon)

A sound wave of frequency f travels horizontally to the right . It is teflected from a larger vertical plane surface moving to left with a speed v . the speed of sound in medium is c (a) The number of waves striking the surface per second is f(c + upsilon)/(c) (b) The wavelength of reflected wave is (c(c-upsilon))/(f(c+upsilon)) (c) The frequency of the reflected wave is f((c+upsilon))/((c+upsilon)) (d) The number of beats heard by a stationary listener to the left of the reflecting surface is (upsilon f)/(c - upsilon)

A wall is moving with constant velocity u towards a fixed source of sound of frequency f . The velocity of sound is v . The wavelength of the sound reflected by the wall is

If a source of frequency n moving with velocity v crosses a stationary observer, then the change in the frequency of sound heard by the observer will be (velocity of sound = V)

A source of sound with frequency 256 Hz is moving with a velocity V towards a wall and an observer is stationary between the source and the wall. When the observer is between the source and the wall he will hear beats.

A source of sound with frequency 256 Hz is moving with a velocity V towards a wall and an observer is stationary detween the source and the wall. When the observer is between the source and the wall he will hear beats.

Speed of sound wave is v. If a reflector moves towards a stationary source emitting waves of frequency f with speed u, the wavelength of reflected waves will be

Speed of sound wave is v. If a reflector moves towards a stationary source emitting waves of frequency f with speed u, the wavelength of reflected waves will be