Question

Find out how many kilometer is one light year and write down in your science dairy

Answer 1

Answer:

1 light year =9.46x10^12 kilometers

Answer 2

Answer:

1 light year = distance that light travels in space (i.e. in vacuum) in 1 year

distance that light travels in vacuum in a second is

= 3 * (10^8) meters (approximately)

1 year

= 365 * 24 * 60 * 60 seconds

= 31, 536, 000 seconds

therefore distance that light travels in 1 year will be

= 3 * (10^8) * 3, 15, 36, 000 meters

= 94, 608, 000 * (10^8) meters

= 9.461 * (10^15) meters

= 9.461 * (10^12) kilometers

so, 1 light year is about 10 thousand billion kilometers distance.

Explanation:

Hope this is clear