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UPSC CSE Pre 2013
Question #35
Space Technology
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Consider the following phenomena:
1
Size of the sun at dusk.
2
Color of the sun at dawn
3
Moon being visible at dawn
4
Twinkle of stars in the sky
5
Polestar being visible in the sky
Which of the above are optical illusions?
A
1, 2 and 3
B
3, 4 and 5
C
1, 2 and 4
D
2, 3 and 5
Pick an option above to test your answer
Reveal Answer ⌄
Subject:
Science & Technology
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Consider the following phenomena: 1. Size of the sun at dusk. 2. Color of the sun at dawn 3. Moon being visible at dawn 4. Twinkle | UPSC CSE Pre 2013 Solved PYQ | UPSCGPT