The speed of light in air is

Important Questions on Light - Reflection and Refraction

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 2

A ray of light travelling in air enters water. The angle of refraction will be

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 3

A ray of light passes undeviated at the interface of two media. The angle of refraction must be

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 4

A ray of light travelling in air is incident on the surface of a rectangular  plastic slab of refractive index $\sqrt{2}$. If the angle of refraction is $30°$, what is the angle of incidence?

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 5

The speed of light in a given medium is $2.5\times {10}^8 \mathrm{m}/\mathrm{s}$. If the speed of light in air is $3\times {10}^8 \mathrm{m}/\mathrm{s}$, what is the refractive index of the given medium?

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 6

The refractive indices of four materials $- \mathrm{A}, \mathrm{B}, \mathrm{C}$ and $\mathrm{D}$ are $1.89, 1.61, 1.50$ and $1.33$ respectively. When a light ray travelling in air enters each of these materials separately, which material will produce minimum bending?

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 7

The refractive indices of four materials $- \mathrm{A}, \mathrm{B}, \mathrm{C}$ and $\mathrm{D}$ are $1.89, 1.61, 1.50$ and $1.33$ respectively. The speed of light is the minimum in

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 8

A piece of diamond is dipped in a liquid of refractive index $1.2$. If the refractive index of diamond is $2.42$, what is the refractive index of the diamond with respect to the liquid?

EASY

10th CBSE

IMPORTANT

Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 9

A $2 \mathrm{cm}$ high object is placed at a distance of $2 f$ from a convex lens. The height of image formed will be