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Question

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


Correct Answer
A
kaleidoscope
Your Answer
B
telescope
Your Answer
C
periscope
Your Answer
D
camera

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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