Refraction of Light at Plane Surface

The phenomenon that takes place due to the bending of light when it travels from medium to another is known as

The angle of deviation produced by the glass slab is

For a certain parallel-sided glass block, the value of $\frac{\sin i}{\sin r}$ is $1.50$. A ray of light passes through the block and emerges at an angle of $60°$ to the surface of the block. What is the value of the angle marked X?

The optical density of turpentine is higher than that of water while its mass density is lower. Figure shows a laycr of turpcntine floating over water in a container. For which one of the four rays incident on turpentine in figure, the path. shown is correct

Cotyledons are also called-

A travelling microscope is used during the experiment

A ray of light is incident at the glass-water interface at an angle $\mathrm{i}$ it emerges finally parallel to the surface of water, then the value of ${\mathrm{\mu }}_{\mathrm{g}}$ would be

A ray of light passes through four transparent media with refractive indices ${\mathrm{\mu }}_1,\mathrm{ }{\mathrm{\mu }}_2,\mathrm{ }{\mathrm{\mu }}_3$ and ${\mathrm{\mu }}_4$ as shown in figure, the surfaces of all media are parallel. If the emergent ray CD is parallel. If the emergent ray CD is parallel to the incident ray AB, we must have

Light is incident at an angle i on a glass slab. The reflected ray is completely polarised. The angle of refraction is

One side of a glass slab is silvered as shown. A ray of light is incident on the other side at angle of incidence $\mathrm{i}={45}^{\mathrm{o}}$ . Refractive index of glass is given as 1.5. The deviation of the ray of light from its initial path when it comes out of the slab is:

Assertion: A parallel beam of light travelling in the air can be displaced laterally by a parallel transparent slab by a distance more than the thickness of the plate.

Reason: The lateral displacement of light travelling in the air increases with rise in the value of refractive index of the slab.

Assertion: If a plane glass slab is placed on the letters of different colours all the letters appear to be raised up to the same height.

Reason: Different colours have different wavelengths.

A vessel of depth $2d cm$ is half filled with a liquid of refractive index ${\mu }_1$ and the upper half with a liquid of refractive index ${\mu }_2$. The apparent depth of the vessel seen perpendicularly is

A ray of light passes through four transparent medium with refractive indices ${\mathrm{\mu }}_1,{\mathrm{\mu }}_2,{\mathrm{\mu }}_3$and ${\mathrm{\mu }}_4$ as shown in the figure. The surfaces of all media are parallel. If the emergent ray $CD$ is parallel to the incident ray AB. We must have

A piece of plane glass is placed on a word with letters of different colours. The letters which appear minimum raised are

A glass slab $\left(\mathrm{\mu }=1.5\right)$ of thickness 6 m is placed over a paper. What is the shift in the shift in the letters?

A fish at a depth of $12 \mathrm{cm}$ in water is viewed by an observer on the bank of a lake. To what height the image of the fish is raised?

(Refractive index of like water$=\frac{4}{3}$)

The graph between angle of deviation (δ) and angle of incidence (i) for a triangular prism is represented by

A microscope is focussed on a mark a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again ?

Light propagates 2 cm distance in glass of refractive index 1.5 in time t₀. In the same time t₀, light propagates a distance of 2.25 cm in a medium. The refractive index of the medium is