Q25 of 112 Page 310

State one use of kaleidoscope.

A Kaleidoscope is a toy mostly used by children for enjoyment. It is made of a tube with plain mirrors and colored glass pieces inside it at one of the end.

Kaleidoscope having object chambers are used for hiding valuables.


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23

What will be the number of images formed when an object is placed between two parallel plane mirrors facing each other?

 24

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

 26

Name the device used to split white light into seven colours.

 27

What happens when a beam of sunlight is passed through a glass prism?