It takes time 8 min for light to reach from the sun to the earth surface. If speed of light is taken to be 3 x 10 to the power 8 ms-1. Find the distance from the sun to the earth in km.
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Sunlight travels at the speed of light. Photons emitted from the surface of the Sun need to travel across the vacuum of space to reach our eyes. The short answer is that it takes sunlight an average of 8 minutes and 20 seconds to travel from the Sun to the Earth.
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