ICSE-X-Physics
05: Refraction through a Lens
- #18A ray of light after refraction through a convex lens emerges parallel to principal axis. (a) Draw a ray diagram to show it. (b) The incident ray passes through a point on the principal axis. Name the point.Ans : 18 (a)
(b) The point where incident ray passes through a point on the principal axis is called first focus.
- #18-aDraw a ray diagram to show it.Ans :
- #18-bThe incident ray passes through a point on the principal axis. Name the point.Ans : The point where incident ray passes through a point on the principal axis is called first focus.