Lekshmi Menon and Louisa Chawhan Solutions for Exercise 4: Let us answer

Author:Lekshmi Menon & Louisa Chawhan

Lekshmi Menon Science Solutions for Exercise - Lekshmi Menon and Louisa Chawhan Solutions for Exercise 4: Let us answer

Attempt the free practice questions from Exercise 4: Let us answer with hints and solutions to strengthen your understanding. Living Science 3. solutions are prepared by Experienced Embibe Experts.

Questions from Lekshmi Menon and Louisa Chawhan Solutions for Exercise 4: Let us answer with Hints & Solutions

EASY
3rd CBSE
IMPORTANT
LIVING SCIENCE 3>Chapter 10 - Light, Sound and Force>Let us answer>Q B

Light travels as thin beams of these.

EASY
3rd CBSE
IMPORTANT
LIVING SCIENCE 3>Chapter 10 - Light, Sound and Force>Let us answer>Q B

This is formed when an object blocks the path of the light.

EASY
3rd CBSE
IMPORTANT
LIVING SCIENCE 3>Chapter 10 - Light, Sound and Force>Let us answer>Q B

This is caused by an unpleasant sound. The word begins with the letter N.

MEDIUM
3rd CBSE
IMPORTANT
LIVING SCIENCE 3>Chapter 10 - Light, Sound and Force>Let us answer>Q C

Name three luminous objects.

MEDIUM
3rd CBSE
IMPORTANT
LIVING SCIENCE 3>Chapter 10 - Light, Sound and Force>Let us answer>Q C

Name three non-luminous objects.

EASY
3rd CBSE
IMPORTANT
LIVING SCIENCE 3>Chapter 10 - Light, Sound and Force>Let us answer>Q C

What can we do to reduce noise?

MEDIUM
3rd CBSE
IMPORTANT
LIVING SCIENCE 3>Chapter 10 - Light, Sound and Force>Let us answer>Q C

Mention three effects of force on an object.

MEDIUM
3rd CBSE
IMPORTANT
LIVING SCIENCE 3>Chapter 10 - Light, Sound and Force>Let us answer>Q D

Number these sources of sound in the increasing order of sound produced.
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