Physics, asked by zdlk73, 1 year ago

define the term focus of a lens​

Answers

Answered by ismartnani
2

Answer:

In geometrical optics, afocus, also called an image point, is the point where light rays originating from a point on the object converge. ... A principalfocus or focal point is a special focus: For a lens, or a spherical or parabolic mirror, it is a point onto which collimated light parallel to the axis isfocused.

Similar questions