Amarnath Mishra, Geeta Mehta, Rajesh Mohan and, Deepti Lehri Solutions for Chapter: Sound, Exercise 1: Exercises

Author:Amarnath Mishra, Geeta Mehta, Rajesh Mohan & Deepti Lehri

Amarnath Mishra Science Solutions for Exercise - Amarnath Mishra, Geeta Mehta, Rajesh Mohan and, Deepti Lehri Solutions for Chapter: Sound, Exercise 1: Exercises

Attempt the practice questions on Chapter 9: Sound, Exercise 1: Exercises with hints and solutions to strengthen your understanding. Basic Science for Class 8 solutions are prepared by Experienced Embibe Experts.

Questions from Amarnath Mishra, Geeta Mehta, Rajesh Mohan and, Deepti Lehri Solutions for Chapter: Sound, Exercise 1: Exercises with Hints & Solutions

EASY
8th CBSE
IMPORTANT

What does the loudness of a sound depend on?

EASY
8th CBSE
IMPORTANT

The frequency of sound is measured in _____.

EASY
8th CBSE
IMPORTANT

The maximum displacement of a vibrating body from its position of rest is its _____.

EASY
8th CBSE
IMPORTANT

The frequency of ultrasonic is _____ than the range of human hearing. Choose from the bracket (greater, lower).

MEDIUM
8th CBSE
IMPORTANT

Sound vibrations die out after travelling some distance due to the loss of _____.(Energy/Force)

EASY
8th CBSE
IMPORTANT

Sound needs a _____to travel.

EASY
8th CBSE
IMPORTANT

Industrial noise can be reduced by proper _____ (maintenance/cooling).

MEDIUM
8th CBSE
IMPORTANT

The reflecting surface has to be at least _____ metres away for us to hear an echo distinctly. 

Choose from the following: 10.4, 17.2, 22.2