Q. The sky appears pitch black to an astronaut orbiting in outer space primarily due to the absence of which phenomenon?

  • (A) Atmospheric scattering of light
  • (B) Total internal reflection
  • (C) Refraction through clouds
  • (D) Gravitational lensing
βœ… Correct Answer: (A) Atmospheric scattering of light
Explanation: In space, there is a lack of an atmosphere containing gas molecules and dust particles. Without an atmosphere to scatter sunlight (Rayleigh scattering), the sky does not get illuminated and appears completely black.
Explanation by: Mr. Dubey
In space, there is a lack of an atmosphere containing gas molecules and dust particles. Without an atmosphere to scatter sunlight (Rayleigh scattering), the sky does not get illuminated and appears completely black.

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