1.

Red lights are used as warning signals at road crossing. Why?​

Answer»

BECAUSE RED LIGHT WILL APPEAR FOR LONG DISTANCE. BECAUSE IT'S WAVE LENGTH IS MORE THAT'S WHY RED LIGHT IS USED FOR WARNING SIGNELS AND IN TRAFFIC SIGNELSExplanation:HOPE IT WILL HELP YOU PLZZ MARK AS BRAINLIST



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