A car is moving with 90 km h^(-1) blows ...

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)` )

100 Hz

150 Hz

170 Hz

130 Hz

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

Mock Test 21: PHYSICS
AAKASH INSTITUTE|Exercise Example|15 Videos
Mock Test 23: PHYSICS
AAKASH INSTITUTE|Exercise Example|21 Videos

Similar Questions

Explore conceptually related problems

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 car is moving towards a fixed wall, it blows form of frequency of 440 Hz . The frequency of reflected sound observed by the driver is 480 Hz then find the speed of car in km/hr. (Speed of sound is 350 m/sec

A bus is moving towards a gauge wall with a velocity of 5m//s^(-1) . The driver sounds a horn of frequency 200 Hz . The frequency of the beats heard by a passenger of the bus will be ………… Hz (Speed of sound in air = 342m//s^(-1))

A train is moving with speed 72 km/h towards a hill blows a whistle of frequency 1240Hz. the frequency of echo heard by driver is(speed of sound=330m/s)

A train moving at a speed of 220ms^-1 towards a stationary object emits a sound of frequency 1000 Hz. Some of the sound reaching the object gets reflected back to the train as echo. The frequency of the echo as detected by the driver of the train is (speed of sound in air is 330ms^(-1) )

An engine blowing a whistle of frequency 133 Hz moves with a velocity of 60(m)/(s) towards a hiss from which an echo is heard. Calculate the frequency of the echo heard by the driver. (velocity of sound in air in 340(m)/(s) .)

A car with a horn of frequency 16 kHz is moving with a velocity of 72 km/h towards a cliff. The reflected sound heard by the driver of the car has a frequency x xx 2000 Hz. Find the value of x if speed of sound in air is 340 m/s. {:(0,1,2,3,4,5,6,7,8,9),(,,,,,,,,,):}

AAKASH INSTITUTE-Mock Test 22: PHYSICS-Example

two waves y1 = 10sin(omegat - Kx) m and y2 = 5sin(omegat - Kx + π/3) m...
Text Solution
|
interferences of waves
Text Solution
|
A tuning fork produces 4 beats per second when sounded togetehr with a...
Text Solution
|
the minimum distance between the reflecting surface and source for lis...
Text Solution
|
Fundamental frequency of a organ pipe filled with N2 is 500 Hz. the fu...
Text Solution
|
Beats are result of
Text Solution
|
two piano keys are stuck simultaneously. the notes emitted by them hav...
Text Solution
|
two waves y1 = 2.5 sin100πt and y2 = 2.5 sin102πt ( where y is in mete...
Text Solution
|
The length of two open organ pipes are l and (l+deltal) respectively. ...
Text Solution
|
two waves of wavelength 100 cm and 102 cm produce 12 beats per second ...
Text Solution
|
Three sound waves of equal amplitudes have frequencies (n-1) ,n (n+1) ...
Text Solution
|
Two tuning forks when sounded together produced 4beats//sec. The frequ...
Text Solution
|
a bus is moving with a velocity 4 m/s towards a wall, the driver sound...
Text Solution
|
a bus is moving in a circle around a listener with speed 20 m/s of rad...
Text Solution
|
a bus is moving towards and stationary observer with speed 20 m/s blow...
Text Solution
|
A car blowing a horn of frequency 350 Hz is moving normally towards a ...
Text Solution
|
A car is moving with 90 km h^(-1) blows a horn of 150 Hz, towards a cl...
Text Solution
|
Which of the following is correct?
Text Solution
|
in which of the following case frequency of sound heard by the observe...
Text Solution
|
The perimeters of tow similar triangles DeltaABC and DeltaPQR are...
Text Solution
|