Consider the following phenomena :
- 1. Size of the sun at dusk
- 2. Colour 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?
1, 2 and 3
3, 4 and 5
1, 2 and 4
2, 3 and 5
Answer is Wrong!
Answer is Right!
This question was previously asked in
UPSC IAS – 2013