A lens is a transparent optical device that focuses or disperses a light beam by means of refraction. To function as a lens, a material must be transparent and have a refractive index that allows for bending of light.
Which of the following material cannot be used to make a lens ?
Asked in Combined (Group C) Exam 2023 · Topic: Optics (Thin and Thick Lenses, lens combinations)
More Physics questions
- In total internal reflection, the light travels from
- The appearance of a rainbow in the sky after a rain shower is due to
- On a very hot day, we often see shimmering wavy lines near the ground. It is due to
- Endoscope, used by doctors for examining the inside of a patient's stomach, works on the principle of
- Statement-I: Diamond is very bright. Statement-II: Diamond has very low refractive index.
- Optical fibres, though bent in any manner, allows light to pass through. What is the inference that one can draw from it ?
- An optical illusion which occurs mainly in deserts during hot summer is based on the principle of
- Mirage is an illustration of