Q. 274.8( 5 Votes )

The distance of a

Answer :

Given:

Distance of galaxy from earth = 10²⁵ m

We know that the speed of light in vacuum or space is 3 x 10⁸ m/s.

Therefore, the time taken by light to reach earth from the galaxy can be calculated as follows

Therefore, the order of magnitude of time taken by light to reach is 10¹⁶s.

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