Absolute and Relative Refractive Index

Q.

State the relation of the refractive index with the speed of light of a medium.

Q. A light ray is incident on air-liquid interface at 45∘ and is refracted at 30∘. What is the refractive index of the liquid?

Q. Which of the following can never be the value of the refractive index of a medium?

1. 3.45
2. 0.66
3. 2.24
4. 1.87

Q. If the absolute refractive index of Glass is 1.5 and that of water is 4/3 find the refractive index of water with respect to glass

Q. Find the time taken by light to cover a distance of 9 mm in water? Take ${\mu }_{water}$ = $\frac{4}{3}$

1. 4 ns
2. 0.4 ns
3. 400 ns
4. 0.04 ns

Q. Find the time taken by light to cover a distance of 9 mm in water? Take ${\mu }_{water}$ = $\frac{4}{3}$

1. 0.4 ns
2. 4 ns
3. 400 ns
4. 0.04 ns

Q. The absolute refractive index of the diamond is 2.1. What is the velocity of light in a diamond?

1. $1.428\times {10}^{8}m/s$
2. $2.672\times {10}^{8}m/s$
3. $2.428\times {10}^{8}m/s$
4. $1.672\times {10}^{8}m/s$

Q. State the speed of light In (a) air, (b) glass.

Q. The absolute refractive index of the diamond is 2.1. What is the velocity of light in a diamond?

1. $2.672\times {10}^{8}m/s$
2. $1.672\times {10}^{8}m/s$
3. $2.428\times {10}^{8}m/s$
4. $1.428\times {10}^{8}m/s$

Q. The incident ray, the refracted ray and the normal at the point of incidence all lie _____.

1. at an angle of ${45}^{\circ }$ to each other
2. in the same plane
3. in different planes
4. in mutually perpendicular planes

Q. Which of the following can never be the value of the refractive index of a medium?

1. 3.45
2. 1.87
3. 0.66
4. 2.24

Q.

A car travels, 40 km at a uniform speed of 40 kmh^-1 What should be its speed for the next 80 km if the average speed of the journey is 60 kmph

Q. The absolute refractive index of the diamond is 2.1. What is the velocity of light in a diamond?

1. $2.672\times {10}^{8}m/s$
2. $1.428\times {10}^{8}m/s$
3. $1.672\times {10}^{8}m/s$
4. $2.428\times {10}^{8}m/s$

Q.

The refractive index of water is

1. 1.5

2. 1

3. 1.33

4. 0

Q.

The refractive index of water is

1. 1.33

2. 1.5

3. 1

4. 0

Q. Find the time taken by light to cover a distance of 9 mm in water? Take ${\mu }_{water}$ = $\frac{4}{3}$

1. 4 ns
2. 400 ns
3. 0.04 ns
4. 0.4 ns

Q. Which of the following can never be the value of the refractive index of a medium?

1. 3.45
2. 0.66
3. 1.87
4. 2.24

Q. Which of the following can never be the value of the refractive index of a medium?

1. 2.24
2. 1.87
3. 3.45
4. 0.66