Lakhmir Singh & Manjit Kaur Solutions for Chapter: Light Energy, Exercise 3: EXERCISES

Author:Lakhmir Singh & Manjit Kaur

Lakhmir Singh & Manjit Kaur Physics Solutions for Exercise - Lakhmir Singh & Manjit Kaur Solutions for Chapter: Light Energy, Exercise 3: EXERCISES

Attempt the free practice questions on Chapter 4: Light Energy, Exercise 3: EXERCISES with hints and solutions to strengthen your understanding. Lakhmir Singh's Science Physics solutions are prepared by Experienced Embibe Experts.

Questions from Lakhmir Singh & Manjit Kaur Solutions for Chapter: Light Energy, Exercise 3: EXERCISES with Hints & Solutions

EASY
7th ICSE
IMPORTANT

A narrow beam of light is called a _____.

EASY
7th ICSE
IMPORTANT

The perpendicular to the surface at the point of incidence is called the _____.

EASY
7th ICSE
IMPORTANT

What are primary colours? Name them.

EASY
7th ICSE
IMPORTANT

What is a pure pigment? Which colour's light do the green pigment absorb?

EASY
7th ICSE
IMPORTANT

Draw a diagram and explain the laws of reflection.

MEDIUM
7th ICSE
IMPORTANT

Explain the characteristics of the image formed by a plane mirror with the help of an example.

EASY
7th ICSE
IMPORTANT

Explain the importance of colour subtraction with an example.

EASY
7th ICSE
IMPORTANT

A Newton's disc can be created by painting a disc with seven different colours, violet, indigo, blue, green, yellow, orange, and red. When the disc is rotated at a high speed, it appears white in colour. Why?

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