Home
Class 12
PHYSICS
Assertion: White light is incident on fa...

Assertion: White light is incident on face AB of an isosceles right angled prism as shown. Colors, for which refractive index of material of prism is more than 1.414, will be able to emerge from the face AC.

Reason: Total internal reflection cannot take place for the light travelling from a rarer medium to a denser medium.

A

If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

B

If both Assertion and Reason are true but Reason is not the correct explanation of the Assertion.

C

If both Assertion is true, but the Reason is false.

D

If both Assertion is false but the Reason is true.

Text Solution

Verified by Experts

The correct Answer is:
D
`i=45^@`
For `mugtsqrt2 or 1.414 rArr theta_Clt45^@`
`:.` They get TIR on face AC.
Promotional Banner

Topper's Solved these Questions

  • REFRACTION OF LIGHT

    DC PANDEY|Exercise Level 1 Objective|38 Videos

  • REFRACTION OF LIGHT

    DC PANDEY|Exercise Objective Questions|1 Videos

  • REFRACTION OF LIGHT

    DC PANDEY|Exercise Exercise 31.8|8 Videos

  • REFLECTION OF LIGHT

    DC PANDEY|Exercise Subjective|9 Videos

  • SEMICONDUCTORS

    DC PANDEY|Exercise Subjective|12 Videos

Similar Questions

Explore conceptually related problems

A ray of light incident normally on an isosceles right angled prism travels as shown in the figure. The least value of the refractive index of the prism must be

A ray of light is incident normally on one face of a right-angled isosceles prism and then it grazes the hypotenuse. The refractive index of the material of the prism is

The angle of refraction is always greater than the angle of incidence for a ray of light travelling from optically denser medium to a rarer medium.

Light is incident normally on face AB of a prism as shown in Figure. A liquid of refractive index mu is placed on face AC of the prism. The prism is made of glass of refractive indes 3//2 . Find the limits of mu for which total internal reflection takes place on the face AC.

Monochromatic light is incident on a glass prism of angle A. If the refractive index of the material of the prism is mu , a ray, incident at an angle theta , on the face AB would get transmitted through the face AC of the prism provided:

A light ray is incident normally on the face AB of a right-angled prism ABC (mu==1.50) as shown in figure. What is the largest angle phi for which the light ray is totally reflected at the surface AC ?

What is the refractive index of the material of the glass prism shown in the figure, if a ray of light incident normally at the face AB emerges along the face AC?

A ray of light is incident on the hypotenuse of a right-angled prism after travelling parallel to the base inside the prism. If mu is the refractive index of the material of the prism, the maximum value of the base angle for which light is totally reflected from the hypotenuse is

A ray of light enters the face AB of a glass prism of refractive index mu at an angle of incidence i . Find the value of i such that no ray emerges from the face AC of the prism, given angle of prism is A .