EASY
7th CBSE
IMPORTANT
Earn 100

What are the characteristics of the image formed by a plane mirror?

Important Questions on Light

MEDIUM
7th CBSE
IMPORTANT
How does light enable us to see objects around us?
MEDIUM
7th CBSE
IMPORTANT
Give differences between a real and a virtual image.
MEDIUM
7th CBSE
IMPORTANT
What did Newton demonstrate with the help of Newton’s disc?
MEDIUM
7th CBSE
IMPORTANT
Write any three uses of concave mirrors.
MEDIUM
7th CBSE
IMPORTANT

With the help of a ray diagram, explain the following term.

Focus of a convex lens.

EASY
7th CBSE
IMPORTANT

With the help of a ray diagram, explain the following term.

Optical centre of a convex lens 

MEDIUM
7th CBSE
IMPORTANT
With the help of a ray diagram, explain the following term: focal length of a convex lens.
MEDIUM
7th CBSE
IMPORTANT
What is meant by dispersion of light?