Saved Bookmarks
| 1. |
Why the danger signal light is red |
|
Answer» Among the colours of visible light, red has more wavelength and least scattered. Thus, red colour can easily go through fog or mist or smoke without getting scattered. It can be seen from long distance. So, red colour is used in universal danger signal. The color red has the maximum wavelength among any other color. Because of this it does not gets scattered away like other colours such as blue, violet etc due to particles present in the atmosphere. Hence it is clearly visible even in a foggy weather from a considerable distance. Therefore danger signals are red in color Red light scattered least the atmosphere. Therefore it can travel larger distance with appernceabke intensity.. Because red colour have highest wavelength and it is leastscattered by fog and smoke Because it is danger Bcoz red colour gets scattered the least due to longer wavelength...... so it would be visible even from a longer distance... |
|