## Question

### Solution

Correct option is

3o

For dispersion without deviation,

#### SIMILAR QUESTIONS

Q1

An isosceles prism of prism angle 120o has a refractive index of 1.44. Two parallel monochromatic rays enter the prism parallel to each other in air as shown in figure. The rays emerging from the opposite faces:

Q2

The angle of prism is 60o and its refractive index is 1.5. There will be no emergent light if the angle of incidence on the first face is:

Q3

A glass prism of refractive index 1.5 is immersed in water (refractive index 4/3). A light beam incident normally on the face AB is totally reflected to reach the face AC if:

Q4

The angle of a prism is A and if the angle of minimum deviation is 180 – 2A, then the refractive index of the material of the prism is:

Q5

An equilateral prism is placed on the prism table of a spectrometer in the position of minimum deviation. If the angle of incidence is 60o, the angle of deviation of the rays is:

Q6

A ray falls on a prism ABC (AB = BC) and travels as shown in the figure. The minimum refractive index of the material should be:

Q7

Three glass prism AB and C of the same refractive index are placed in contact with each other as shown in the diagram below with no air gap between the prisms. A monochromatic ray of light OP passes through the prism assembly and emerges as QR. The conditional minimum deviation is satisfied in the prisms:

Q8

Angle of minimum deviation for a prism of refractive index 1.5 is equal to the angle of prism. The angel of the prism is:

(Given cos 41o ≈ 0.75)

Q9

A prism (μ = 1.5) has the refractive angle of 30o. The deviation of a monochromatic ray incident normally on its one surface will be (sin 48o36 = 0.75):

Q10

Two identical prisms 1 and 2, each with angles of 30o, 60o and 90o are placed in contact as shown in figure. A ray of light passes through

The combination in the position of minimum deviation and suffers a deviation of 30o. if the prism 2 is removed, then the angle of deviation of the same ray is;