Question

The distance of a galaxy is 5.6 × 10²⁵m. Express the distance of galaxy in light year assuming the speed of light to be 3 × 10⁸ m s-¹

Answer 1

Answer:

1.867×10

17

s

Explanation:

Given:

distance = 5.6×10

25

m

speed = 3×10

8

ms

−1

Time = ?

Time taken =

speed

distancetravelled

=

3×10

8

5.6×10

25

=1.867×10

17

s