Question

From Earth to the center of our galaxy is about 300,000 light years, meaning that light coming from a star in the center of our galaxy takes 300,000 years to get to earth. Answer True False

Answer 1

it takes about about 37,200 years for light to travel 1 light year. So the answer would have to be false. It would take way longer than 300k years

Answer 2

Answer:

True

Explanation:

1 light year is the distance travelled by light in one year

Distance of 1 light year

1 light year = 3×10⁸×365×24×60×60 m

Speed of light = 3×10⁸ m/s

300,000 light years = 300,000×3×10⁸×365×24×60×60

$\text{time}=\frac{\text{Distance}}{\text{Speed}}\\\Rightarrow \text{time}=\frac{300,000\times 3\times 10^8 \times 365\times 24\times 60\times 60}{3\times 10^8}\\\Rightarrow \text{time}=300,000\times 365\times 24\times 60\times 60\ s\\\Rightarrow \text{time}=300,000\ years$

So, time taken by light to cover 300,000 light years is 300,000 years