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Light from the Sun reaches us in nearly

  • A.2 minutes
  • B.4 minutes
  • C.8 minutes
  • D.16 minutes

Answer: C

Sunlight reaches us in about 8 minutes.

\[t = \frac{d}{c} = \frac{1.5\times10^{11}}{3\times10^{8}} = 500\ \mathrm{s} \approx 8\ \text{minutes 20 seconds}\] So we always see the sun as it was eight minutes ago.

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