The given diagram shows a ray of light incident on an equilateral glass prism placed in minimum deviation position. The path of the emergent ray is such that

It emerges parallel to the base of the prism

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It emerges at an angle towards the base of the prism

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It emerges at an angle away from the base of the prism

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It does not refract

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Solution

The correct option is B
It emerges at an angle towards the base of the prism

The complete ray diagram is shown below.

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Q. The angle of deviation through a prism is minimum when

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(B) The refracted ray inside the prism becomes parallel to its base.
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(D) When the angle of emergence is double the angle of incidence.
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The given diagram shows a ray of light incident on an equilateral glass prism placed in minimum deviation position. The path of the emergent ray is such that

The correct option is B It emerges at an angle towards the base of the prismThe complete ray diagram is shown below.

The correct option is B
It emerges at an angle towards the base of the prism

The complete ray diagram is shown below.