Question

3. It takes 5 years for light to reach the earth from
a star. Express the distance of star from the
earth in (i) light year, (ii) km. Take speed of light
= 3 x 108 m s' and 1 year = 3-153 x 10's.​

Answer 1

Step-by-step explanation:

I hope it will be help full for

Answer 2

Step-by-step explanation:

distance = speed × time

1 year = 31,536,000

5 years = 157,680,000

distance = (ii) 4.73 × 10^13

(i) 5 light years