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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 [NCERT Exemplar Problems] (a) is scattered the most by smoke or fog (b) is scattered the least by smoke or fog (b) is absorbed the most by smoke or fog (c) moves fastest in air

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 [NCERT Exemplar Problems]
(a) is scattered the most by smoke or fog
(b) is scattered the least by smoke or fog
(b) is absorbed the most by smoke or fog
(c) moves fastest in air

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 8741 Points
22 days ago
Answer: b Explanation: (b) Red colour has longer wavelength so least scattered by smoke or fog.

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