Question

it takes time8 min for light to reach from the sun to the earth surface .if speed of light is taken to be 3 multiplied 10 to the power 8,find the distance from the sun to the earth in km​

Answer 1

Answer: 144000000 km

Step-by-step explanation:

Time taken = 8 min = 8 x 60 s = 480 s

Speed of light = 3 x 10⁸ m/s

Thus, distance from sun to earth = 3 x 10⁸ x 480 m

                                                      = 1440 x 10⁸ m

                                                      = 1440 x 10⁵ km

** fun fact: the distance from the sun to the earth is also called as 1 astronomical unit (1 AU).