Name a device which is used to produce changing patterns or sequences by means of multiple reflections.

Periscope

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Kaleidoscope

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Irregular reflection

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Both A and B

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Solution

The correct option is B
Kaleidoscope

Kaleidoscope is a tube-shaped optical instrument that contains mirrors and bits of colored glasses whose reflections produce changing patterns when the tube is rotated.

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Similar questions

A device which works on the reflection of light from two plane mirrors arranged parallel to one another is:

(a) electroscope

(b) kaleidoscope

(d) stethoscope

Name an instrument or toy which works by producing multiple reflections from three plane mirrors to from beautiful patterns.

What do you mean by reflection of sound ?

State one condition for the reflection of a sound wave.

Name a device in which reflection of sound wave is used.

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