write the behaviour of certain light rays when they are incident on a lens
Answers
Answer:
" The bending of a ray of light also occurs when light passes into and out of a glass lens. However, because of the curved surfaces of the lens, the bending causes the light rays in a beam either to come together (converge, picture on left-hand side) or to spread out (diverge, picture on right-hand side).
Answer:
prasanna
Oct '16
Situation -1: Ray passing through the principal axis => It is not deviated.
Situation - II : Ray passing through the pole =» It is also undeviated
Situation - III: Rays travelling parallel to the principal axis => They are converge at focus or diverge from the focus.
Situation - IV : Ray passing through focus => It will take a path parallel to principal axis after refraction.
Situation-V: Parallel rays fall on a lens making some angle with principal axis. => They converge at a point or diverge from a point lying on a focal plane.