Two cars are moving on two perpendicular...

Two cars are moving on two perpendicular road towards a crossing with uniform speeds of `72km//hr` and `36km//hr`. If first car blows horn of frequency 280 Hz, then the frequency of horn heard by the driver of second car when line joining the cars make `45^@` angle with the roads, will be

340 Hz

280 Hz

289 Hz

320 Hz

Text Solution

Verified by Experts

Topper's Solved these Questions

TEST 3
AAKASH INSTITUTE|Exercise EXAMPLE|54 Videos
TEST 5
AAKASH INSTITUTE|Exercise EXAMPLE|190 Videos

Similar Questions

Explore conceptually related problems

Two cars are moving on two perpendicular roads towards a crossing with uniform speeds of 72(km)/(h) and 36(km)/(h) . If second car blows born of frequency 280 Hz, then the frequency of horn heard by the driver of first car when the line joining the cars makes angle of 45^@C with the roads, will be (velocity of sound is 330(m)/(s) )

Two cars moving in opposite directio approach each other with speed of 22m//s and 16.5m//s respectively . The driver of the first car blows a horn having a frequency 400Hz . The frequency heard by the driver of the second car is [ velocity of the sound 340m//s]

Two car moving in opposite directions approach each other with speed of 22m//s and 16.5m//s respectively. The driver of the first car blows a horn having a frequency 400 Hz . The frequency heard by the driver of the second car is [velocity of sound 340m//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

Two cars are approaching each other on a straight road and moving with a velocity of 30 kmh-1 . If the sound produced in a car is of frequency 500 Hz, what will be the frequency of sound as heard by the person sitting in the other car ? When the two cars have crossed each other and are moving away from each other, what will be the frequency of sound as heard by the same person ? Speed of sound= 330 ms^-1 .

Two cars are approaching each other at an equal speed of 7.2 km/hr. When they see each other, both blow horns having frequency of 676 Hz. The beat frequency heard by each driver will be _____ Hz. [Velocity of sound in air is 340 m/s.]

AAKASH INSTITUTE-TEST 4-EXAMPLE

The amplitude of sound is doubled and the frequency is reduced to one ...
Text Solution
|
Intensity level at a distance 200 cm from a point source of sound is 8...
Text Solution
|
Two cars are moving on two perpendicular road towards a crossing with ...
Text Solution
|
In an experiment, sonometer wire vibrates in 4 loops when a 50 g weigh...
Text Solution
|
Two tuning forks P and Q are vibrated together . The number of beats p...
Text Solution
|
A string is rigidly tied at two ends and its equation of vibration is ...
Text Solution
|
The length of a sonometer wire is 0.75 m and density is 9 xx 10^3 kg/m...
Text Solution
|
Three waves of equal frequency having amplitudes 10 mm, 4 mm and 7 mm ...
Text Solution
|
A line source of sound of length 10 m, emitting a pulse of sound that ...
Text Solution
|
The particles of a medium vibrate about their mean positions whenever ...
Text Solution
|
The change in frequency due to Doppler effect does not depend on
Text Solution
|
The dimensional formula of "Moment of force" is
Text Solution
|
If the angular velocity vector of a spinning body points out of the pa...
Text Solution
|
The rotational inertia of a disc about its geometrical axis does not d...
Text Solution
|
A force with a given magnitude is to be applied to a wheel. The torque...
Text Solution
|
A particle, held by a string whose other end is attached to a fixed po...
Text Solution
|
A single force acts on a particle situated on the negative x-axis. The...
Text Solution
|
Ten seconds after an electric fan is turned on, the fan rotates at 300...
Text Solution
|
The angular position of a point over a rotating flywheel is changing a...
Text Solution
|
Keeping moment of inertia constant, the angular momentum of a body is ...
Text Solution
|