Question

2: (a)What is focal
point of a
lens?​

Answer 1

The focal point of a convex lens is the point where light rays parallel to the axis are brought to a point. The distance from the lens to this point is called the focal length of the lens. and. Diverging light rays striking a convex lens can be bent until they emerge parallel to the axis.

Answer 2

The focal point is where the light from a parallel bundle of rays comes to focus, this location is at one focal length from the lens. This focal length f is important relative to other properties of a lens..

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