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Light Energy — PHYSICS STD 7 — Question

ICSE BoardEnglish MediumSTD 7PHYSICSLight Energy2 Marks
Question
What are the primary colours ? Name the three primary colours.
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Answer

Primary colours are the colours of light by mixing which white light is obtained. They are : (i) red (ii) green and (iii) blue.
Red + Green + Blue = White

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