Embibe Experts Solutions for Chapter: Light - Reflection and Refraction, Exercise 1: Madhya Pradesh Board-2020

Write any three uses of concave mirror.

Define the focal length of a spherical mirror.

Define the term magnification of a spherical lens.

Define the power of lens.

Find the power of a concave lens of focal length $2 \mathrm{m}$.

Define the radius of curvature of the spherical mirror.

The radius of curvature of a spherical mirror is $20 \mathrm{cm}$. Find its focal length.

S.l. unit of power of lens is -