A car blowing a horn of frequency 350 Hz is moving normally towards a wall a speed of 5 m/s The beat frequency heard by a person standing between the car and wall is (speed of sound in air =350 m/s )

A motor car blowing a horn of frequency 124 vib//s moves with a velocity 72 km//hr towards a tall wall. The frequency of the reflected sound heard by the driver will be (velocity ofsound in air is 330 m//s )

A car, sounding a horn of frequency 1000 Hz, is moving directly towards a huge wall at a speed of 15 m/s. If speed of sound is 340 m/s, then the frequency of the echo heard by the driver is

A car sounding its horn at 480 Hz moves towards a high wall at a speed of 20 m/s, the frequency of the reflected sound heard by the man sitting in the car will be nearest to :

A motor car blowing a horn of frequency 124vib//sec moves with a velocity 72km//hr towards a tall wall. The frequency of the reflectedf sound heard by the driver will be (velocity of sound in air is 330 m//s )

A tuning fork of frequency 380 Hz is moving towards a wall with a velocity of 4(m)/(s) Then the number of beats heard by a stationary listener between direct and reflected sound will be (velocity of sound in air is 340(m)/(s) )

A tuning fork of frequency 380 Hz is moving towards a wall with a velocity of 4(m)/(s) Then the number of beats heard by a stationary listener between direct and reflected sound will be (velocity of sound in air is 340(m)/(s) )

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 ambulance blowing a siren of frequency 700 Hz is travelling towards a wall with a speed 2 m(s)^-1.Calculate the number of beats heard in one second by the driver of the ambulance.(velocity of sound = 350 m(s)^-1 )

A police car moving with speed 5 m/s is blowing a siren of frequency 600 Hz and travelling towards a vertical wall. Calculate (a) number of beats heard in 1 s by driver of car. (b) beats heard by a person standing between car and well. (c) beats heard by a person standing behind the car. (Speed of sound is 340 m/s)