A bat moving at 1`0 ms^(-1)` towards a wall sends a sound signal of 8000 Hz towards it. On reflection it hears a sound of frequency f. The value of g in Hz is close to (speed to sound `= 320 ms^(-1)`) :-

A bat moving at 10ms towards a well sends a sound signal of 8000Hz towards it. On reflection it hears a sound of frequency f. The value of f in Hz is close to (speed of sound = 320 ms^(-1))

A reflector is moving with 20 ms^(-1) towards a stationary source of sound. If the source is producing sound waves of 160 Hz., then the wavelen of the reflected wave is (speed of sound in air is 340 ms^(-1) )

A car is moving with 90 km h^(-1) blows a horn of 150 Hz, towards a cliff. The frequency of the reflected sound heard by the driver will be (speed of sound in air is 340 ms^(-1) )

A car is moving with 90 km h^(-1) blows a horn of 150 Hz, towards a cliff. The frequency of the reflected sound heard by the driver will be (speed of sound in air is 340 ms^(-1) )

A car sounding its horn at 480Hz moves towards a high wall at a speed of 20ms^(-1) , the frequency of the reflected sound heard by the man sitting in the car will be nearest to , (speed of sound =330m//s)

An operator sitting in his base camp sends a sound signal of frequency 400 Hz. The signal is reflected back from a car moving towards him The frequency of the reflected sound is found to be 410 Hz. Find the speed of the car. Speed of sound in air = 324 m s^-1 .

An operator sitting in his base camp sends a sound signal of frequency 400 Hz. The signal is reflected back from a car moving towards him The frequency of the reflected sound is found to be 410 Hz. Find the speed of the car. Speed of sound in air = 324 m s^-1 .