Question

# Light takes approximately 8 minutes to reach the earth from Sun. The distance between earth and Sun in kilometers is ______. (speed of light= 3$$\times$$ 10$$^8$$ ms$$^{-1}$$ )

A
1440 × 108 m
B
14 × 108 m
C
140 × 108 m
D
4 × 108 m

Solution

## The correct option is A 1440 $$\times$$ 10$$^8$$ mThe distance between the earth and the sun $$d=$$ velocity of light $$\times$$ time taken to reachlight form sun to earthor $$d=(3\times 10^8 m/s)\times (8\times 60 s)=144\times 10^9 m=144\times 10^6 km$$Physics

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