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Ashutosh Sundresh from Shiv nadar, Faridabad
Subject :IGK    Class : Class 8

Which of the following is based on the principle of formation of many images by mirrors placed at fixed angles to each other?

ATelescope
BKaleidoscope
CPeriscope
DMicroscope


Ans 1:

pradyun from indian school al seeb, muscat
Class : Class 8
b.kaleidoscope

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