Previous year MCQs

General science UPPSC 2007 GS-I
Question

Statement (A): The signal of danger is made of red colour.
Reason (R): The scattering of red is least

Select the right answer with the help of code given below.
Code:

Answer & Solution

Answer: (Detailed Solution Below)

Option A: Both A and R are true and R is the correct explanation of A

Detailed Solution:

The correct answer is “Both A and R are true and R is the correct explanation of A”.
Red is used for danger signals because it has the longest wavelength of visible light and scatters the least in the atmosphere. This allows red light to travel long distances without getting scattered, making it easier to spot and avoid danger.

Similar Questions:

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  3. C) Sugar
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Reason R: The domestic consumption of tea in India is very less.

Choose the correct answer from the code given below:
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  2. B) Both A and R are correct but R is not the explanation of A
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Code:
A B C D
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  2. B) 4 3 2 1
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