WBCS.LIVE practice question

A star appears twinkling in the sky because of

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Scattering of light by atmosphere
  2. Diffraction of light by atmosphere
  3. Reflection of light by atmosphere
  4. Refraction of light by atmosphere

Correct answer and explanation

Correct answer: Refraction of light by atmosphere