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9. Ray optics abd optical instruments — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics9. Ray optics abd optical instruments1 Mark
MCQ
Stars are twinkling due to
  • A
    Diffraction
  • B
    Reflection
  • ✓
    Refraction
  • D
    Scattering
✓

Answer

Correct option: C.
Refraction
c
( c)Stars twinkle due to variation in $R.I.$ of atmosphere.

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