E Doris James, Vandana Tirath, Anton Siromani and, Kiran Banerji Solutions for Exercise 3: Looking Back

Author:E Doris James, Vandana Tirath, Anton Siromani & Kiran Banerji

E Doris James Science Solutions for Exercise - E Doris James, Vandana Tirath, Anton Siromani and, Kiran Banerji Solutions for Exercise 3: Looking Back

Attempt the free practice questions from Exercise 3: Looking Back with hints and solutions to strengthen your understanding. New Science Ahead 8 solutions are prepared by Experienced Embibe Experts.

Questions from E Doris James, Vandana Tirath, Anton Siromani and, Kiran Banerji Solutions for Exercise 3: Looking Back with Hints & Solutions

EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 13 - Sound>Looking Back>Q 1

In which medium is the speed of sound the highest?

EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 13 - Sound>Looking Back>Q 2

What are ultrasonics and infrasonics?

EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 13 - Sound>Looking Back>Q 3

What is the unit of measurement of loudness of sound?

EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 13 - Sound>Looking Back>Q 4

Mention two hazards of noise pollution.

EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 13 - Sound>Looking Back>Q 5

Mention two ways of reducing noise pollution.