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Home⇒ Everyday Science GK⇒ Physics
Note:- You can add tough questions into your favourite list for second revision. |
Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit | |
A. | X-rays [Wrong Answer] |
B. | ultraviolet light [Wrong Answer] |
C. | visible light [Correct Answer] |
D. | radio waves [Wrong Answer] |