Question

Draw the path of a ray of light passing through a triangular glass prism. Label the angle of incidence and the angle of deviation in the ray-diagram.

Answer 1

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Answer 2

Explanation:

The given diagram shows the path of light’s ray passing via a triangular glass prism. The angle of deviation and the angle of incidence is also marked.

where,

• Incident ray is denoted as PE.
• Refracted ray is denoted as EF.
• Angle of incidence is shown as ∠i.
• Angle of refraction is denoted as ∠r.
• Emergent ray is shown as FS.
• Angel of emergence is shown as ∠e.
• Angle of the prism is denoted as ∠A.
• Angel of deviation is shown as ∠D.