SCIENCE [PHYSICS] Class-10>Light - Reflection and Refraction>Lens Formula

Lens Formula

Author:Dr. Sunil Kushwaha

10th CBSE

IMPORTANT

Lens Formula: Overview

This topic explains the lens formula. The relationship between the distance of an object from the optical centre and focal length of the lens is given by the lens formula.

Important Questions on Lens Formula

HARD

IMPORTANT

SCIENCE [PHYSICS] Class-10>Light - Reflection and Refraction>Lens Formula> Q 1

Double convex lenses are to be manufactured from a glass of refractive index $1.55$ , with both faces having the same radius of curvature. What is the radius of curvature required if the focal length of the lens is to be $20 cm$ ?

EASY

IMPORTANT

SCIENCE [PHYSICS] Class-10>Light - Reflection and Refraction>Lens Formula> Q 2

What is lens formula?