CBSE BOARD X, asked by mohitrocks13, 1 year ago

why is red colour selected for danger signal light?

Answers

Answered by Anonymous
4
Hey there!!

Here's your answer..

Consider the Visible spectrum. It is divided into seven regions which emit various colours basing on the wavelength. The seven colours are Violet, Indigo, Blue, Green, Yellow, Orange and Red respectively.

As we move from left to right, the wavelength increases. As per this rule, Red has the highest wavelength.

Wavelength is nothing but the distance traveled by a wave. Since Red has the highest wavelength, it can travel longer distances.

It is used in danger signals so as to alert people before any accident happens.

Hope it helps!!

mohitrocks13: thanks
Answered by kanishkdwivedi9Baba
1
It is more wavelenght.

Anonymous: it is not wavelength dude, it has wavelength
Ananya02: When light falls on the signal all colours are scattered much more than that of red colour. So the red colour suffering least scattering remains confined around the signal,which in turn illuminates the signal significantly. Thus the danger signals can be seen from very far off distances.
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