Dhiren M Doshi Solutions for Chapter: Sound, Exercise 5: Check Your Progress

Author:Dhiren M Doshi

Dhiren M Doshi Physics Solutions for Exercise - Dhiren M Doshi Solutions for Chapter: Sound, Exercise 5: Check Your Progress

Attempt the free practice questions on Chapter 6: Sound, Exercise 5: Check Your Progress with hints and solutions to strengthen your understanding. LIVING SCIENCE PHYSICS 9 solutions are prepared by Experienced Embibe Experts.

Questions from Dhiren M Doshi Solutions for Chapter: Sound, Exercise 5: Check Your Progress with Hints & Solutions

EASY
9th CBSE
IMPORTANT

Give reasons for the following.

The speed of sound in hydrogen is more than the speed of sound in oxygen.

EASY
9th CBSE
IMPORTANT

Give reasons for the following.

People living near the airport have high risk of developing hearing problem.

EASY
9th CBSE
IMPORTANT

Give reasons for the following.

When a pistol is fired, smoke coming out is seen much earlier than the sound of the pistol.

EASY
9th CBSE
IMPORTANT

Give reasons:

Low flying supersonic aircraft shatters glasses of the windowpanes of houses.

MEDIUM
9th CBSE
IMPORTANT

Give reason: Sound travels faster on a rainy day than on a dry day.

EASY
9th CBSE
IMPORTANT

Give reason: Lightning is seen much earlier than thunder is heard.

MEDIUM
9th CBSE
IMPORTANT

Give reason: A sound board is placed behind a speaker in an auditorium.

EASY
9th CBSE
IMPORTANT

A man is standing at a distance of 25 m from a high wall. He hears the echo off the high wall, produced by a clap of his hands. If the velocity of sound is 330 ms, what would be the time interval between his original clap and hearing of the echo?