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 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.

Text Solution

Verified by Experts

The angle of deviation `delta=(i_(1)+i_(2)-A` here,`delta=30^@, i_(1)=60^@,A=30^@`. Hence `30^@ =60^@+i_(2)-30^@=30^@+i_(2)impliesi_(2)=0`
The angle of emergence is zero. This means that the emergent ray is perpendicular to the second face.
Promotional Banner

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 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 of 60^(@) on one face of a 30^(@) prism . The emergent ray from the prism makes an angle of 30^(@) with the incident ray. The angle of emergence and refractive index of the material of the prism are-

A ray of light is incident at an angle of 60^(@) on a prism whose refracting angle is 30^(@) . The ray emerging out of the prism when produced backward makes an angle of 30^(@) with the incident ray produced forward. Find the refractive index of the material of the prism.

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

A ray of light is incident on one face of a prism ( m= sqrt(3) ) at an angle of 60^@ . The refracting angle of the prism is also 60^@ . Find the angle of emergence .

A ray of light is incident at an angle of incidence 45^@ on an equilateral prism and emerge at an angle 45^@ then the refractive index of the medium of the prism is: