Q55
Light from the star, Alpha Centauri, which is nearest to the earth after the sun, reaches the earth in
A.
4.2 seconds
B.
42 seconds
C.
4.2 years
AnswerD.
42 years
Answer: Option C
Solution
Answer: Option C
Solution:
Light from the nearest star reaches the earth in 4.2 years. The closest star to Earth are three stars in the Alpha Centauri system.