Optics Question 8
Question: Assertion : The setting sun appears to be red. Reason : Scattering of light is directly proportional to the wavelength.
[AIIMS 2000]
Options:
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Show Answer
Answer:
Correct Answer: C
Solution:
The sun and its surroundings appears red during sunset or sunrise because of scattering of light. The amount of scattered light is inversely proportional to the fourth power of wavelength of light i.e. $ I\propto \frac{1}{{{\lambda }^{4}}} $
