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STD 12 - 9. Ray optics abd optical instruments — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - 9. Ray optics abd optical instruments4 Marks
MCQ
Why sun has elliptical shape on the time when rising and sun setting $?$ It is due to
  • ✓
    Refraction
  • B
    Reflection
  • C
    Scattering
  • D
    Dispersion
✓

Answer

Correct option: A.
Refraction
a
(a) In the morning or evening, the sun is at the horizon and refractive index in the atmosphere of the earth decreases with height.

Due to this, the light reaching the earth's atmosphere, bends unequally, and the image of the sun get's distorted and it appears elliptical and larger.

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