EXERCISES

Author:Lakhmir Singh & Manjit Kaur

Lakhmir Singh & Manjit Kaur Physics Solutions for EXERCISES

Simple step-by-step solutions to EXERCISES questions of Light Energy from Lakhmir Singh's Science Physics. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.

Questions from 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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