Saved Bookmarks
| 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 |
|