Question

How long does it take for light from a star that is 8 light years away to reach Earth?

Answer 1

Answer:

Its A

Explanation:

   It takes about 4 years for light from this star to reach earth. Depends on the the Distance of the star. As our sun is 149.6 million km away from the Earth it takes total 8 minutes 20 seconds.

   It takes light 8 minute to reach from surface of sun to earth.

   However, light produced in the core of the sun takes thousands to millions of years to get to the surface.

   A light-year is the distance light travels in one Earth year. One light-year is about 6 trillion miles (9 trillion km).

Answer 2

I would believe it’s C