Q. Red light is used in traffic signals, because

(A) Colour of our Blood is Red
(B) Human identify only Red Colour
(C) Red is Symbol of Danger
(D) Red Light Disperses Least

✅ Correct Answer: (D) Red Light Disperses Least

Published by Vikash Gupta ⭐ 33.56K Points at 18-Oct-2020 03:51 pm in Science

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