Multiple choice

Sun’s halo is produced by the refraction of light in

  1. water vapours in Stratus clouds

  2. ice crystals in Cirro-Cumulus clouds

  3. ice crystals in Cirrus clouds

  4. dust particles in Stratus clouds

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The ice crystals suspended in Cirrus clouds (5-10 km) in the upper atmosphere are responsible for sun’s halo.