Sun's halo is produced by the refraction of light in
A
Water vapour in Stratus Clouds
B
Ice crystals in Cirro-cumulus clouds
C
Dust particles in stratus clouds
D
Ice crystals in Cirrus clouds
Correct Answer: Ice crystals in Cirrus clouds
Sun's halo is produced by the refraction of light in Ice crystals in Cirrus clouds. A halo is a ring or light that forms around the sun or moon as the sun or moon light refracts off ice crystals present in a thin veil of cirrus clouds.