Question

Write the name of devices which works on the principle of reflection of light

Answer 1

A number of devices are available that work on the principle of reflection of light.

Some of them are :-
1) Solar Cooker
2) Photocopiers
3) Printers
4) Periscope

I hope you got the answer.
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Answer 2

The device which works on the principle of reflection of light is the periscope.

• Periscope and kaleidoscope both work in the principle of reflection of light.
• In these instruments, mirrors are arranged parallel and the viewing of objects is due to multiple reflections.
• When light is first reflected and then falls again into the instrument then it undergoes a series of reflections.
• Plane mirrors are used in kaleidoscopes.
• A periscope is used to visualise a distant object.
• Periscope is used in submarine navigation underwater.