10 generating questions and answers in polynomial chapter (please) plzzzzzzzzzzzzzzzzzzzzzzzzzz
Answers
Answered by
1
A light ray can pass through a lens from either direction. Therefore, a lens has two principal foci.
For a convex lens, the first focal point is a point F1 on the principal axis of the lens such that the rays of light starting from it or passing through it, after refraction through lens, become parallel to the principal axis of the lens.
Similar questions