Question

A passenger in an aeroplane shall

• A. never see a rainbow
• B. may see a primary and a secondary rainbow as concentric circles
• C. may see a primary and a secondary rainbow as concentric arcs
• D. shall never see a secondary rainbow

Answer 1

Answer: (B)

The passenger in an aeroplane shall see the primary and the secondary rainbow in the form of the concentric circles because the light gets total internal reflection from other secondary droplets also.
Since there is no ground ahead of the passenger in an aeroplane, the rainbow appears as a full circle.