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प्रश्न
The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all other colours, the red light ____________.
विकल्प
is scattered the most by smoke or fog
is scattered the least by smoke or fog
is absorbed the most by smoke or fog
moves fastest in air
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उत्तर
The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all other colours, the red light is scattered the least by smoke or fog.
Explanation:
Red colour has a longer wavelength so least scattered by smoke or fog.
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संबंधित प्रश्न
What is meant by scattering of light? Use this phenomenon to explain why the clear sky appears blue or the Sun appears reddish at sunrise.
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