Problem Discussion on Refraction and Thin Lens

Discussion on Refraction at Spherical Surfaces and Lens

Spherical Surface||Refraction and thin Lens

Focal Length OF Lens||Lens In Medium||Lens Ray Diagram||Discussion OF Sheet Refraction By Spherical Surface Question -42 to 47

Lens -Classification||Behaviour OF Lens in Different Medium||General Method to Solve Problem OF Lens|| Discussion OF Sheet- Section-2 (part-4 Q.12 to 23)

Thin Lens Formula

A thin lens is made of glass of refractive index 1.6. Both the surfaces of lens are convex. When this lens is dipped in water of refractive index 4//3 then the lens will behave like

A hollow lens is made of thin glass and in the shape of a double concave lens. It can be filled with air, water of refractive index 1.33 or CS_(2) of refractive index 1.6 . It will act as a diverging lens if it is

The radius of curvature of the convex surface of a thin plano-convex lens is 15 cm and the refractive index of its material is 1.6. The power of the lens is

A thin lens of refractive index 1.5 has focal length of 15 cm in air. When the lens is placed is a medium of refractive index (4)/(3), its focal length will become …..cm.