Question

3. Danger signals are red because:
(a) Red colour has least wavelength.
(b) Red colour is very much scattered by fog and smoke
(c) Red colour is a component of sun light.
(d) Red colour of light is least scattered by fog or smoke.​

Answer 1

Answer:

Red colour of light 13 least scattered by fog or Smoke

Explanation:

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Answer 2

Answer -

(d) Least scattered by fog or smoke -

Explanation -

The effect of scattering is inversely related to the fourth power of the wavelength of a given colour. Since the colour red has the highest wavelength of all the colours it gets scattered the least.

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