state gov Bihar Police Constable (सिपाही) Mock Test Series 2025 General Science Physics Optics

The sun is visible to us about _______ before the actual sunrise and about _______ after the actual sunset because of atmospheric refraction.

1
1 minute; 2 minutes
2
2 minutes; 2 minutes
3
1 minute; 1 minute
4
2 minutes; 1 minute
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