Consider the following statements about 22 degree circular halo, rare weather phenomena seen in atmosphere:

  1. It is an optical phenomenon produced by light interacting with ice crystals suspended in upper troposphere
  2. It can be observed around sun as well as around moon

    Which of the above statements is/are correct?

Answer: [C] Both 1 & 2

Both are correct statements
22 degree circular halo was recently observed in Kolkata. It is an optical phenomenon produced by light interacting with ice crystals suspended in upper troposphere. It appears as a large ring around the Sun or Moon with a radius of about 22°.

This question is a part of GKToday's Integrated IAS General Studies Module