Question

Draw the ray diagram for refraction of light through a glass prism and mark angle of refraction and angle of deviation.

Hint:

Angle of deviation = Angle between incident and emergent rays.

Answer 1

Ray Diagram Description:

• A ray of light is incident on one face of the glass prism.
• It bends towards the normal on entering the prism (refraction).
• The refracted ray travels inside the prism and strikes the second face.
• On emerging into air, it bends away from the normal.

Markings:

• Angle of refraction (r): Angle between refracted ray and normal inside the prism.
• Angle of deviation ($\delta$): Angle between the direction of incident ray and emergent ray.