How is a rainbow formed?

Important Questions on Light

MEDIUM

7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 8 - Light>Exercises>Q B

Why does a Newton’s disc appear white when it is rotated?

MEDIUM

7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 8 - Light>Exercises>Q C

What are real and virtual images? What are the differences between them?

MEDIUM

7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 8 - Light>Exercises>Q C

What do you understand by the focus of a lens? How will you find the focus of a convex lens?

MEDIUM

7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 8 - Light>Exercises>Q C

What is refraction? Explain with an example.

EASY

7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 8 - Light>Exercises>Q D

An image formed by a plane mirror _____ (cannot/can) be seen on a screen.

EASY

7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 8 - Light>Exercises>Q D

A _____ image can be formed on a screen.

EASY

7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 8 - Light>Exercises>Q D

A convex mirror is one in which the reflecting surface bulges_____.

MEDIUM

7th CBSE

IMPORTANT

Basic Science For Class 7>Chapter 8 - Light>Exercises>Q D

After parallel rays of light pass through a _____ lens, they seem to come from a point.