NEET Physics Question - Ray Optics - Refraction by Spherical Surfaces

Assertion (A): During sunset and sunrise sun appears to be red.

Reason (R): During sunrise or sunset, sun emits electromagnetic radiations of comparatively higher wavelength only.

(1) Both (A) & (R) are true and the (R) is the correct explanation of the (A)

(2) Both (A) & (R) are true but the (R) is not the correct explanation of the (A)

(3) (A) is true but (R) is false

(4) Both (A) and (R) are false

Solution:

Assertion (A) is true; at sunrise/sunset, sunlight travels longer through the atmosphere, scattering away shorter wavelengths (blue) and leaving longer wavelengths (red). Reason (R) is false; the sun emits all wavelengths. The perceived color is due to atmospheric scattering, not selective emission.

Rankers Physics

Sunset/Sunrise Colors

Solution:

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