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Q: Due to atmospheric refraction, sunrise and sunset can be delayed by about ––––––––––––
  • A. 3 minutes
  • B. 2 minutes
  • C. 4 minutes
  • D. 1 minute
Correct Answer: Option B - Due to atmospheric refraction, sunrise and sunset can be delayed by about 2 minutes. The speed of light changes from one medium to another, which is called refraction of light.
B. Due to atmospheric refraction, sunrise and sunset can be delayed by about 2 minutes. The speed of light changes from one medium to another, which is called refraction of light.

Explanations:

Due to atmospheric refraction, sunrise and sunset can be delayed by about 2 minutes. The speed of light changes from one medium to another, which is called refraction of light.