EASY
7th CBSE
IMPORTANT
Earn 100

Sunrays falling on a concave mirror after reflection are allowed to fall on pieces of paper. The paper start burning. What is the focal length of the mirror?

Important Questions on Light
EASY
7th CBSE
IMPORTANT

EASY
7th CBSE
IMPORTANT

EASY
7th CBSE
IMPORTANT

EASY
7th CBSE
IMPORTANT

EASY
7th CBSE
IMPORTANT

EASY
7th CBSE
IMPORTANT

EASY
7th CBSE
IMPORTANT

EASY
7th CBSE
IMPORTANT
Each lens has a point, a ray passing through it goes without deviation. What is the name of that point and where is it located?
