Question

The theory belongs behind stars twinkling is that-

• A. The refractive index of the different layers of earth's atmosphere changes continuously, consequently the position of the star's image changes with time.
• B. The intensity of light emitted by them changes with time
• C. The light from the star is scattered by the dust particles and air molecules in the earth's atmosphere
• D. The distance of the stars from the earth changes with time

Answer 1

Answer: (A)

The theory belongs the twinkling of stars is that the refractive index of the various layers of the Earth atmosphere changes continuously, consequently the position of the image of the star changes with time.