We see the sun rising $8\frac{1}{4}$ minutes after it has already risen. Why?

The Sun is at a far distance from earth.

It is around 1490 lakh kilometers away

Light travels with a speed of 3 lakh kilometers per second.

So time taken for light to reach earth is $\frac{1490 \ lakh \ kilometers }{3 \ lakh \ kilometers \ per \ second}$

= approximately 497 seconds.

Which is nearly $8\frac{1}{4}$ minutes

So, wee see the sun rising $8\frac{1}{4}$ minutes after it has already risen

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Updated on: 10-Oct-2022

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