MEDIUM
7th CBSE
IMPORTANT
Earn 100

Convex mirrors are used as rear-view mirrors. Why?

Important Questions on Light

EASY
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 8 - Light>Exercises>Q B
What do you understand by the spectrum of white light?
MEDIUM
7th CBSE
IMPORTANT
Basic Science For Class 7>Chapter 8 - Light>Exercises>Q B
How is a rainbow formed?
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.