Home
Class 9
PHYSICS
A pebble is dropped freely in a well fro...

A pebble is dropped freely in a well from its top. It takes 20 s for the pebble to reach the water surface in the well. Taking `g = "10 m s"^(-2)` and speed of sound = `330 "m s"^(-1)`. Find the depth of water surface

Text Solution

AI Generated Solution

To find the depth of the water surface in the well where a pebble is dropped, we can break the problem down into a few steps. ### Step-by-Step Solution: 1. **Understanding the Problem**: - A pebble is dropped from the top of a well and takes a total time of 20 seconds to reach the water surface. - We need to calculate the depth of the well (denoted as \(d\)). ...
Promotional Banner

Topper's Solved these Questions

  • LAWS OF MOTION

    ICSE|Exercise EXAMPLES|24 Videos

  • LAWS OF MOTION

    ICSE|Exercise EXERCISE - 3(A)|19 Videos

  • LAWS OF MOTION

    ICSE|Exercise TOPIC 3 (3 Marks Questions ) |7 Videos

  • ICSE ANNUAL EXAMINATION -2020

    ICSE|Exercise SECTION-II|45 Videos

  • LIGHT

    ICSE|Exercise TOPIC 2 Spherical Mirrors (4 Marks Questions )|9 Videos

Similar Questions

Explore conceptually related problems

A pebble is dropped freely in a well from its top. It takes 20 s for the pebble to reach the water surface in the well. Taking g = "10 m s"^(-2) and speed of sound = 330 "m s"^(-1) . Find the time when sound is heard after the pebble is dropped.

A stone is dropped freely in a river from a bridge. It takes 5 s to touch the water surface in the river. Calculate :the distance covered by the stone in the first 2 s (g = 9.8 m s^(-2) ).

A stone is dropped freely in a river from a bridge. It takes 5 s to touch the water surface in the river. Calculate : the height of the bridge from the water level .

A body is dropped freely under gravity from the top of a tower of height 78.4 m. Calculate : (i) the time to reach the ground . Take g = 9.8 m s^(-2) .

A stone is dropped freely from the top of a tower and it reaches the ground in 4 s. Taking g = 10 m s^(-2) , calculate the height of the tower.

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 body is dropped from the top of a tower. It acquires a velocity 20 m s^(-1) on reaching the ground. Calculate the height of the tower. (Take g = 10 m s^(-2) )

A body is dropped freely under gravity from the top of a tower of height 78.4 m. Calculate : the velocity with which it strikes the ground. Take g = 9.8 m s^(-2) .

A ball is thrown upward with speed 10 m/s from the top to the tower reaches the ground with a speed 20 m/s. The height of the tower is [Take g=10m//s^(2) ]

A ball is thrown up at a speed of 4.0 m/s. Find the maximum height reached by the ball. Take g=10 m//s^2 .