Assertion : The setting sun appears to be red | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The assertion is correct: The setting sun appears red because, at sunset, the sun's light travels a longer distance through the atmosphere. During

Vedclass · Accepted Answer

If the Assertion is correct but Reason is incorrect.

Vedclass · Answer

(C) The assertion is correct: The setting sun appears red because, at sunset, the sun's light travels a longer distance through the atmosphere. During this journey, most of the shorter wavelengths (blue and violet) are scattered away by atmospheric particles, leaving mostly the longer wavelengths (red) to reach our eyes.The reason is incorrect: According to Rayleigh's law of scattering, the intensity of scattered light $(I)$ is inversely proportional to the fourth power of its wavelength $(\lambda)$, i.e., $I \propto 1/\lambda^4$. Therefore, scattering is inversely proportional to the wavelength, not directly proportional.

Assertion : The setting sun appears to be red.
Reason : Scattering of light is directly proportional to the wavelength.

Similar Questions

Stars are not visible in the daytime because

The sky would appear red instead of blue if

The fine powder of a coloured glass is seen as

What is Rayleigh scattering?

Assertion: The stars twinkle while the planets do not.
Reason: The stars are much bigger in size than the planets.

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Assertion : The setting sun appears to be red.Reason : Scattering of light is directly proportional to the wavelength.