Home
Class 11
PHYSICS
A thin prism produces an angular dispers...

A thin prism produces an angular dispersion of 24. If the refracting angle of the prism is `3^(@)` , and the refractive index of the material of the prism for red colour is 1.55 . What is the refractive index of its material for violet light ?

A

`1.55`

B

`1.61`

C

`1.683`

D

`1.653`

Text Solution

Verified by Experts

The correct Answer is:
C
Angular dispersion = `A (n_(v) - n_(R)) and 24' = ((24)/(60))^(@)`
`therefore ((24)/(60))^(@) = 3^(@) [n_(v) - 1.55]`
`therefore (24)/(60 xx 3) = (2)/(15) = (n_(v) - 1.55)`
`therefore n_(v) = 1.55 + (2)/(15) = 1.683`
Promotional Banner

Topper's Solved these Questions

  • REFRACTION OF LIGHT

    MARVEL PUBLICATION|Exercise Test Your Grasp|10 Videos

  • RAY OPTICS (MIRRORS, LENSES AND OPTICAL INSTRUMENTS)

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|10 Videos

  • VECTORS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|10 Videos

Similar Questions

Explore conceptually related problems

The refracting angle of a prism is A and refractive index of the material of the prism is cos(A//2) . The angle of minimum deviation is

The refracting angle of a prism is A, and refractive index of the material of the prism is cot (A//2). the angel of minimum deviation is

The refracting angle of the prism is 60^@ and the refractive index of the material of the prism is sqrt(3) . Calculate the angle of minimum deviation in degree.

The refracting angle of a prism is A, and refractive index of the material of the prism is cot (A)/(2) . The angle of minimum deviation is

The refracting angle of a prism is A , the refractive index of the material of the prism is cot((A)/(2)) . The angle of minimum deviation is :

The refracting angle of a prism is A and refractive index of the material of prism is cot(A//2) . The angle of minimum deviation will be

A thin prism of 6^@ angle gives a deviation of 3^@ . The refractive index of the material of the prism is.

A prism of angle 4^@ gives a deviation of 2.4^@ . The refractive index of the material of the prism is

A thin prism of angle A=6^(@) produces a deviation d=3^(@) . Find the refractive index of the material of prism.