The principle of successive reflections of light at inclines mirrors is used in

Periscope

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Telescope

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Microscope

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Kaleidoscope

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Solution

The correct option is B Kaleidoscope
A Kaleidoscope operates on the principle of multiple reflection. Typically there are three rectangular mirrors set at 60 to each other so that they form an equilateral triangle. The 60 angle creates seven duplicate images of the objects, five at 60, and 2 at 90. As the tube is rotated, the tumbling of the coloured objects presents varying colours and patterns.

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Similar questions

Q. Two plane mirrors are inclined to each other with their reflecting faces making acute angle. A light ray is incident on one plane mirror. The total deviation after two successive reflections is

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Show that if a ray of light is reflected successively from two mirrors inclined at an angle q, the deviation of the ray does not depend upon the angle of incidence. [5 MARKS]

Q. Name the instrument in which successive reflection of light takes place from two plane mirrors.

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