Class 10ScienceThe Human Eye and the Colourful WorldMix Examples - The Human Eye and the Colourful World
EasyDue to atmospheric refraction, the sun is visible about $2$ minutes before the actual sunrise and about $2$ minutes after the actual sunset. By how much time is the day lengthened due to this phenomenon?
- A$2$ minutes
- B$3$ minutes
- C$4$ minutes
- D$10$ minutes
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$(a)$ What is meant by the least distance of distinct vision?
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