When sound is produced in an Aeroplane m...

When sound is produced in an Aeroplane moving with a velocity of 200 m/sec horizontally its echo is heard after `10sqrt(5)` seconds. If velocity of sound in air is 300 m/sec the elevation of the aircraft is

250 m

`250sqrt(5)m`

1250 m

2500 m

Text Solution

Verified by Experts

Topper's Solved these Questions

QUESTION PAPER 2007
WB JEE PREVIOUS YEAR PAPER|Exercise PHYSICS|50 Videos
QUESTION PAPER 2009
WB JEE PREVIOUS YEAR PAPER|Exercise Multiple Choice Questions (Physics)|40 Videos

Similar Questions

Explore conceptually related problems

A body of mass 10 kg is moving with a velocity of 100 m/s. find the force needed to stop it in 5 seconds.

The echo of the sound of an explosion from the bottom of an ocean was heard after 10 sec of its occurrence. If the velocity of sound in water be 1500 m//s , the depth of the ocean at the place is :

After 20 sec of making a sound a reflection from a mountain is audiable.If the velocity of sound is 330 m/s them the distance of the mountain is

A train moving with a velocity v is passing a station. A passenger standing on the station notices that the whistle emitted by the train changes its frequency by 50 Hz when it passes him. Given that the frequency of the whistle when the train is at rest with respect to the passenger is 500 Hz and the velocity of sound in air is 330 m/sec, the velocity of the train is

A solid sphere falls with a terminal velocity of 10 m/sec in air. If it is allowed to fall in vacuum

The minimum distance between the source and the reflector, so that an echo is heard is approximately equal to (velocity of sound in air 332 m/s)

WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2008-PHYSICS

A hollow cylinder with both side open generales a frequency 'f' in air...
Text Solution
|
Two stretched strings has lengths 'l' and '2l' while tensions are 'T' ...
Text Solution
|
When sound is produced in an Aeroplane moving with a velocity of 200 m...
Text Solution
|
Two tuning forks of frequencies n(1) and n(2) produces n beats per s...
Text Solution
|
A car moving with a velocity of 36 km/hr crosses a siren of frequency ...
Text Solution
|
Six molecules have speeds 2 units, 5 units, 3 units, 6 units, 3 units ...
Text Solution
|
Which one of the figures gives the temperature dependence of density o...
Text Solution
|
A bullet emerges from a barrel of length 1.2 m with a speed of 640 m/s...
Text Solution
|
A body of mass 3 kg acted upon by a constant force is displaced by 's'...
Text Solution
|
The ionization potential of H atom is -13.6 eV. An electron in the gro...
Text Solution
|
An experiment takes 10 minutes to raise temperature of water from 0^(@...
Text Solution
|
Which of the following substances has the highest elasticity?
Text Solution
|
A wire is stretched under a force. If the wire suddenly snaps the temp...
Text Solution
|
When the room temperature becomes equal to the dew-point, the relative...
Text Solution
|
At what temperature will the rms speed of air molecules be double that...
Text Solution
|
The refractive indices of glass and quartz with respect to air are (3)...
Text Solution
|
The radius of curvature of a concave mirror is 24cm and the image is m...
Text Solution
|
A point source of light is kept at a depth of 'h' in water of r.i 4/3....
Text Solution
|
Four point charges each '+q' is placed on the circumference of a circl...
Text Solution
|
64 identical spheres of charge q and capacitance C each are combined t...
Text Solution
|