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Questions for IC OPTICAL

Answer the following questions

1. Halo round the sun shows a pure clear _____ on the outside
2. Halo occurs from ____ cloud
3. Corona are formed due to the ______ of light
4. Aurora Borealis occur in the
5. Aurora Australis called _____ Lights
6. Superior Mirage occurs marked
7. Sometimes a halo with a radius of ______ is observed, called Large Halo
8. Aurora Australis occur in the
9. Corona are formed due to light, passing through
10. Corona occur in ______ clouds
11. Halo signifies predominance in the cloud of
12. The cloud which cause Halo has ______ chances of ice accretion
13. Halo is produced by
14. Inferior Mirage occurs when there is
15. Halo is luminous ring of ______ radius
16. Aurora Borealis are called ______ Lights
17. The radius of the Bishop's ring is about
18. Halo is produced when light passes through
19. Bishop's ring is due to the diffraction of light by fine particles of
20. Halo occur in the cloud