Question

You told your friend to hold a lens for some time just above a black paper in sunlight such that light rays
incident on the lens gets focused on the paper.
a) What was your observation?
b) What type of lens was used?
c) What name is given to the distance between the lens and black paper?
Ans-
Sun​

Answer 1

Answer:

a-the paper starts burning

b- concave

c-reflected ray

Explanation: