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Applications of Plane Mirrors

A __________ ...

Question

A __________ is an optical instrument used to produce changing colour patterns.

A

kaleidoscope

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B

telescope

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C

periscope

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D

camera

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Solution

The correct option is A kaleidoscope
A kaleidoscope is an optical instrument with two or more reflecting surfaces inclined to each other at an angle, so that one or more objects on one end of the mirrors are seen as a regular symmetrical pattern when viewed from the other end. This phenomenon is observed due to multiple reflections within the instrument.

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