State whether the given statement is true or false.

There is a ray diagram to show the angle of deviation when a ray of light passes through a glass prism.

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True

False

answer is A.

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Detailed Solution

The given statement is true.
Concept- If a light ray passes through a glass prism, it is refracted or deviated twice. The first is when it enters the glass prism (from a rarer medium to a denser medium) , and the second is when it exits the prism (denser medium to rarer medium) .
The ray diagram below depicts the angle of deviation as a light beam travels through a glass prism.
Question Image

In the diagram,
EF → Incident beam
i → angle of incidence
GH →Emergent beam
e → angle of emergence
D →angle of deviation
A →angle of prism
The incident beam is the ray of light EF, while the emerging beam is the ray of light GH. So the beam enters the prism at F and exits at G. As illustrated in the illustration, D is the angle of departure.
Hence, the given statement is true.

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