An engine driver moving towards a wall w...

An engine driver moving towards a wall with velocity of `50 ms^(-1)` emits a note of frequnecy `1.2 kHz`. The frequency of note after reflection from the wall as heard by the engine driver when speed of sound in air is `350 ms^(-1)` is :

2.4 kHz

0.24 kHz

1.6 kHz

1.2 kHz

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

NTA NEET SET 31
NTA MOCK TESTS|Exercise PHYSICS|45 Videos
NTA NEET SET 33
NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

An engine driver moving towards a wall with velocity of 50ms^(-1) emits a note o frequency 1.2kHz. The frequyency of note after reflection from the wall is eard by the engine driver when speed of sound in air is 350ms^(-1) is

An engine driver moving towards a wall with velocity of 50m/s emits a note of frequcency1.5kHz. The frequency of note after reflection from the wall as hear by the engine driver when speed of sound in air is 350m/s is

An engine driver moving towards a wall with a velocity of 60 m/s emits a note of 1400 Hz. Speed of sound in air is 340 m/s .The frequency of the note after reflection from the wall as heard by the engine driver is

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 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 bat flies perpendicularly towards a wall with a speed of 6 m/s, emitting sound of frequency 450 kHz. What is the frequency of the wave reflected from the wall that it will hear? Given c=340(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 van is moving with a speed of 3ms^(-1) towards a large wall. A person standing on the line of motion of the van observes the van to be moving away from him. The horm of the van is now blown. The frequency of the sound produced by the horn is 600 Hz. what is (i) The frequency of sound heard by the person for the sound produced directly by the horn? (ii) The freuquency of sound reflected by the wall. (iii) The baat frequency heard by the driver. the speed of sound in air is 330ms^(-1)?

Bus moving with speed v forwards a stationary wall. it produces sound of frequency f = 420 Hz. The heard frequency of reflected sound from wall by driver is 490 Hz . Calculate the speed v of bus. The velocity of sound in air is 330 m/s .

NTA MOCK TESTS-NTA NEET SET 32-PHYSICS

The minimum force required to move a body up on an inclined plane is t...
Text Solution
|
A radioactive sample S(1) having the activity A(1) has twice the numbe...
Text Solution
|
Half-life of a radioactive substance A is 4 days. The probability that...
Text Solution
|
According to Einstein's photoelectric equation , the graph between the...
Text Solution
|
A smooth spherical ball of radius 1cm and density 4xx10^(3)kg//m^(3) i...
Text Solution
|
A ray light from a liquid (mu=sqrt(3)) is incident on a system of two ...
Text Solution
|
A microscope is having objective of focal length and eye piece of foca...
Text Solution
|
Moment of inertia of a uniform quarter disc of radius R and mass M abo...
Text Solution
|
The radius of a wheel is R and its radius of gyration about its axis p...
Text Solution
|
How many NAND gates used to form AND gate.
Text Solution
|
If the forward voltage in a diode is increased, the width of the deple...
Text Solution
|
For the same rise in temperature of one mole of gas at constant volume...
Text Solution
|
In a single slit diffraction pattern, the distance between the first m...
Text Solution
|
In Young's double slit experiment , the two slits 0.20 mm apart are il...
Text Solution
|
An engine driver moving towards a wall with velocity of 50 ms^(-1) emi...
Text Solution
|
Displacement - time graphs for two waves, wave - 1 and wave - 2 are sh...
Text Solution
|
The power of sound from the speaker of radio is 10 W. Now, the power o...
Text Solution
|
System shown in figure is released from rest . Pulley and spring is ma...
Text Solution
|
For the potential energy function shown in fig. there will be an unsta...
Text Solution
|
A long spring is stretched by x cm its P.E. is U. If the same spring i...
Text Solution
|