Deviation in Prism

Q.

Does refractive index increases with the increase in angle of deviation?

Q. Angle of prism is A and its one surface is silvered. Light rays falling at an angle of incidence 2A on first surface return back through the same path after suffering reflection at second silvered surface. Refractive index of material is

1. 2 sin A
2. 2 cos A
3. $cos\frac{A}{2}$
4. tan A

Q. A ray of light is incident at angle $i$ on a surface of a prism of small angle $A$ and emerges normally from the opposite surface. If the refractive index of the material of the prism is $\mu$, the angle of incidence $i$ is nearly equal to:

1. $\frac{A}{\mu }$
2. $\frac{A}{\left(2\mu \right)}$
3. $\mu A$
4. $\mu \frac{A}{2}$

Q. An isosceles prism of angle ${120}^{\circ }$ has a refractive index $\sqrt{2}$. Two parallel monochromatic rays enter the prism parallel to each other in air as shown. in figure. Find the angle between the emerging rays

1. ${30}^{\circ }$
2. ${45}^{\circ }$
3. ${60}^{\circ }$
4. ${90}^{\circ }$

Q. Find the angle of deviation suffered by the light ray shown in figure. The refractive index μ = 1.5 for the prism material.
Figure

Q. The angle of prism is $3^{\circ }$. The refractive index is $1.5$. The angle of minimum deviation is .

1. $2^{\circ }$
2. ${1.5}^{\circ }$
3. ${0.5}^{\circ }$
4. $1^{\circ }$

Q.

Critical angle of first medium is ${60}^{\circ }$ and it's refractive index 1.732. The refractive index of the second medium is

1. 1.5

2. 1.7
3. 1.6
4. 2

Q. If one face of a prism of angle ${30}^{\circ }$ and refractive index $\mu =\sqrt{2}$ is silvered, the incident ray retraces its initial path. The angle of incidence is

1. ${45}^{\circ }$
2. ${30}^{\circ }$
3. ${60}^{\circ }$
4. ${15}^{\circ }$

Q. How mass of particles increase when it travels at speed of light in hydron clloider

Q. Angle of minimum deviation is equal to the angle of prism A of an equilateral glass prism. The angle of incidence at which minimum deviation will be obtained is

1. ${60}^{\circ }$
2. ${30}^{\circ }$
3. ${45}^{\circ }$
4. $si{n}^{-1}\left(\frac{2}{3}\right)$