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Refraction

An object OT ...

Question

An object OT is placed in front of the concave mirror as shown in the image. The point C, F and P are the centre of curvature, focus and pole of the mirror respectively. The point O of the object is emitting three rays 1, 2 and 3 as shown in the image. Which of the following rays will again meet the tip of the object after reflection?

A

Only 1

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B

Only 2

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C

Only 3

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D

Only 2 and 3

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Solution

The correct option is A Only 1
Ray 1 passes through C, and any ray which passes through the centre of curvature retraces the path after reflection.
Hence the ray passing through C will again meet the tip of the object.

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