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Home » Class 10 » Light-Reflection and Refraction » Refraction by Spherical Lenses

Refraction by Spherical Lenses

Last Updated on April 7, 2023 By Mrs Shilpi Nagpal

Question 1 What is a lens?

Question 2 How many type of lens are them?

Question 3 What is a convex lens?

Question 4 What is a concave lens?

Question 5 Draw Bi-convex, plane-convex and concavo-convex lens?

Question 6 Draw Bi-concave, plane-concave and convexo-concave lens?

Contents

  • 1 Refraction by Spherical Lenses
    • 1.1 Types of lenses
      • 1.1.1 (1) Convex or converging
      • 1.1.2 (2) Concave or diverging
  • 2
    • 2.1 (a) Bi-convex
    • 2.2 (b) Plane-convex
    • 2.3 (c) Concavo-convex
  • 3 Concave lens
    • 3.1 (a) Bi-concave
    • 3.2 (b) Plane-concave
    • 3.3 (c) Convexo-Concave

Refraction by Spherical Lenses

Lens is a transparent medium bounded by two refracting surfaces.

Types of lenses

(1) Convex or converging

convex lens
(2) Concave or diverging

conacve lens

Convex Lens

A lens having both spherical surface or one spherical and other plane surface.

It is thick in the middle and thin at the edges.

They are of 3 types:

(a) Bi-convex

Bi-convex lens
(b) Plane-convex

Plane-convex

(c) Concavo-convex

Concavo-convex

Concave lens

(a) Bi-concave

Bi-concave


(b) Plane-concave

Plane-concave
(c) Convexo-Concave

convexo-concave

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Filed Under: Class 10, Light-Reflection and Refraction Tagged With: bi-concave lens, bi-convex lens, concavo-convex lens, convex lens, convexo-concave lens, plane-concave lens, Plane-convex lens, spherical lens

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