What is Lens

It is a transparent glass

it is bound by 2 spherical surfaces

Hence, if 2 glass spheres are joined together, they form a lens

 

What are Different Types of lens

They are of 2 types

types-of-spherical-lenses---teachoo.jpg

Concave Lens

It is thin in center but thicker at the edges

 

Convex Lens

It is thick in middle but thinner at the edges

 

Real life images of Concave and Convex Lens look like

concave-and-convex-lens---real-life.jpg

 

Questions 

NCERT Question 1 - Which one of the following materials cannot be used to make a lens?
(a) Water (b) Glass (c) Plastic (d) Clay

View Answer

  1. Class 10
  2. Chapter 10 Class 10 - Light - Reflection and Refraction (Term 1)

About the Author

CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo