A sound wave of wavelength ` lambda` travels towards the right horizontally with a velocity `V`. It strikes and reflects from a vertical plane surface , travelling at a speed `v` towards the left . The number of positive crests striking in a time interval of `3 s` on the wall is

A sound wave of frequency f travels horizontally to the right. It is reflected from a large vertical plane surface moving to left with a speed v . The speed of sound in medium is C

A sound wave of frequency f travels horizontally to the right. It is reflected from a large vertical plane surface moving to left with a speed v . The speed of sound in mwdium is C

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)