Lakhmir Singh and Manjit Kaur Solutions for Chapter: Sound, Exercise 3: Long Answer Type Questions
Lakhmir Singh Science Solutions for Exercise - Lakhmir Singh and Manjit Kaur Solutions for Chapter: Sound, Exercise 3: Long Answer Type Questions
Attempt the practice questions on Chapter 13: Sound, Exercise 3: Long Answer Type Questions with hints and solutions to strengthen your understanding. Lakhmir Singh's SCIENCE FOR CLASS 8 solutions are prepared by Experienced Embibe Experts.
Questions from Lakhmir Singh and Manjit Kaur Solutions for Chapter: Sound, Exercise 3: Long Answer Type Questions with Hints & Solutions
A pendulum oscillates times in seconds. Calculate its
(i) time-period, and
(ii) frequency. Can we hear the sound produced by the oscillations of this pendulum? Give reason for your answer.
Draw a neat and labelled diagram of the human ear. Explain its working.
What is noise? Give two examples of sounds which are considered noise.
What is a musical sound? Give two examples of musical sounds.
What is meant by noise pollution? Mention some of the sources of noise pollution in your surroundings.
Explain how, noise pollution (or excessive loud noise) is harmful to human beings.
State the various measures which can be taken to control (or reduce) noise pollution in our surroundings.
What can be done along the roads to reduce noise pollution caused by traffic from reaching the residents of the area?
