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A device which works on the reflection of light from two plane mirrors arranged parallel to one another is: (a) electroscope (b) kaleidoscope (c) periscope (d) stethoscope |
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Answer» A device which works on the reflection of light from two plane mirrors arranged parallel to one another is: (a) electroscope (b) kaleidoscope (c) periscope (d) stethoscope |
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