Home
Class 11
PHYSICS
A stone dropped from the top of a tower...

A stone dropped from the top of a tower of height 300 m high splashes into the water of a pong near the base of the tower. When is the splash heard at the top ? Given that the speed of sound in air is `340ms^(-1)? (g=9.8ms^(-2)`.

Text Solution

Verified by Experts

The correct Answer is:
`8.707 s`
`h=(1)/(2)g t_(1)^(2)rArr t_(1)=sqrt((2h)/(g))and h=vt_(2),t_(2)=(h)/(v)=(300)/(340)`
`:. t=t_(!)+t_(2)=8.707 sec`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • WAVES AND OSCILLATIONS

    ALLEN|Exercise Part-1(Exercise-04)[B]|13 Videos

  • WAVES AND OSCILLATIONS

    ALLEN|Exercise Part-1(Exercise-05)[A]|28 Videos

  • WAVES AND OSCILLATIONS

    ALLEN|Exercise Part-1(Exercise-03)|31 Videos

  • SEMICONDUCTORS

    ALLEN|Exercise Part-3(Exercise-4)|51 Videos

Similar Questions

Explore conceptually related problems

A stone is dropped from the top of a tower 500 m high into a pond of water at the base of the tower. When is the splash heard at the top ? Given, g = 10 m//s^2 and speed of sound = 340 m//s .

A stone is dropped from the top of a tower 500 m high into a pond of water at the base of the tower. When is the splash heard at the top? Given g =10"m s"^(-2) and speed of sound is 340"m s"^(-1) .

Knowledge Check

  • A stone is dropped from the top of a tower 500 m high into a pond of water at the base of the tower, when is the splash heard at the top? Given, g = 10"m s"^(-2) and speed of sound =340"m s"^(-1) .

    A
    10 s
    B
    14.70 s
    C
    11.47 s
    D
    None of these

  • A stone is dropped from the top of a tower and travels 24.5 m in the last second of its journey. The height of the tower is

    A
    44.1 m
    B
    49 m
    C
    78.4 m
    D
    72 m

  • A stone is dropped from the top of a tower and travels 24.5 m in the last second of its journey. Then the height of the tower is

    A
    44.1 m
    B
    49 m
    C
    78.4 m
    D
    none of these

    • Similar Questions

    Explore conceptually related problems

    A particle is dropped from the top of a tower. It covers 40 m in last 2s. Find the height of the tower.

    A particle is dropped from the top of a tower of height 80 m . Find the time of jurney and the speed with which it strikes the ground.

    A stone is dropped from the top of a tower of height 100 m. The stone penetrates in the sand on the ground through a distance of 2m. Calculate the retardation of the stone.

    A stone is dropped into a pond from the top of the tower of height h. If v is the speed of sound in air, then the sound of splash will be heard at the top of the tower after a time

    A stone is dropped into a lake from a tower of 500 m height. The sound of the splash will be heard by the man after

    Home
    Profile