Home
Class 12
PHYSICS
A ray of light is incident at an angle o...

A ray of light is incident at an angle of `60^(@)` on one face of a prism of angle `30^(@)`. The emergent ray of light makes an angle fo `30^(@)` with incident ray. Tha angle made by the emergent ray with second face of prism will be :

A

normal to the face through which it emerges

B

Incline at `30^(@)` to the face through it emerges

C

inclined at `60^(@)` to the face through it emerges

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A
(a) Deviation of ray in prism is given by,
`delta=i+e-A`
So, `e=delta+A-i=30^(@)-60^(@)=0^(@)`
So, emergent ray will be perpendicular to face, or emergent ray will make an angle of `90^(@)` with the face through which it emerges.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • RAY OPTICS

    DC PANDEY ENGLISH|Exercise Checkpoint 9.6|20 Videos

  • RAY OPTICS

    DC PANDEY ENGLISH|Exercise Checkpoint 9.7|10 Videos

  • RAY OPTICS

    DC PANDEY ENGLISH|Exercise Checkpoint 9.4|20 Videos

  • NUCLEI

    DC PANDEY ENGLISH|Exercise C MADICAL ENTRANCES GALLERY|46 Videos

  • REFLECTION OF LIGHT

    DC PANDEY ENGLISH|Exercise Subjective|9 Videos

Similar Questions

Explore conceptually related problems

A ray of light is incident at an angle of 60^(@) on one face of a prism of angle 30^(@) . The ray emerging out of the prism makes an angle of 30^(@) with the incident ray. The emergent ray is

A ray of light is incident at 60^(@) on one face of a prism of angle 30^(@) and the emergent ray makes 30^(@) with the incident ray. The refractive index of the prism is

Knowledge Check

  • A ray of light is incident at 60^(@) on one face of a prism of angle 30^(@) and the emergent ray makes 30^(@) with the incident ray. The refractive index of the prism is

    A
    `1.732`
    B
    `1.414`
    C
    `1.5`
    D
    `1.33`

    • Similar Questions

    Explore conceptually related problems

    A ray of light is incident at 65^(@) on one face of a prism of angle of 30^(@) and the emergent ray makes 35^(@) with the incident ray. The refractive index of the prism is:

    A ray of light is incident at an angle of 60^@ on the face of a prism having refracting angle 30^@. The ray emerging out of the prism makes an angle 30^@ with the incident ray. Show that the emergent ray is perpendicular to the face through which it emerges.

    A ray of light is incident at an angle of 60^@ on the face of a prism having refracting angle 30^@. The ray emerging out of the prism makes an angle 30^@ with the incident ray. Show that the emergent ray is perpendicular to the face through which it emerges.

    A ray of light is incident at an angle of 60^@ on the face of a prism having refracting angle 30^@. The ray emerging out of the prism makes an angle 30^@ with the incident ray. Show that the emergent ray is perpendicular to the face through which it emerges and calculate the refractive index of the material of prism.

    A ray of light is incident at an angle of 60^@ on the face of a prism having refracting angle 30^@. The ray emerging out of the prism makes an angle 30^@ with the incident ray. Show that the emergent ray is perpendicular to the face through which it emerges and calculate the refractive index of the material of prism.

    A ray of light is incident at an angle of 60^(@) on one face of a prism which has refracting angle of 30^(@) . The ray emerging out of the prism makes an angle of 30^(@) with the incident ray. If the refractive index of the material of the prism is mu=sqrt(a) , find the value of a .

    A Ray of light is incident at an angle 60° on one face of a prism which has protecting angle of 30°. The emerging ray deviates through 30° from incident light. The refractive index of material of prism is

    Home
    Profile