Consider a source moving towards an observer at the speed of `upsilon_(s)=0.95upsilon` . Deduce the observed frequency if original frequency is 500Hz. What would happen if `upsilon_(s)gtupsilon?` (Jet planes moving faster than sound are common). Here , `upsilon` is velocity of sound in air.

A source of sound is moving towards an observer at rest with a speed V = 0.1 times the speed of sound. Find the apparent freuency as heard by the observer if original frequency is 400 Hz.

At what speed should a source of sound move so that stationary observer finds the apparent frequency equal to half of the original frequency

A source of sound is travelling towards a stationary observer. The frequency of sound heard by the observer is of three times the original frequency. The velocity of sound is v m / sec . The speed of source will be

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

A source of sound is travelling towards a stationary observer. The frequency of sound heard by the observer is 25 % more than the actual frequency. If the speed of sound is v , that of the source is

A source of sound S is moving with a velocity of 50m//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 as 1000 Hz. What will be the apparent frequency of the source when it is moving away from the observer after crossing him? The velocity of the sound in the medium is 350m//s

A source emitting sound of frequency 1000 Hz is moving towards an observer at speed v_s = 0.90 v , (where v is the velocity of sound). What frequency III will be heard by the observer ?