Question

It takes a photon 8 minutes and 25 seconds ro reach earth. What is the distance (labeled 1 au) in meter between the sun and earth? The speed od light un a vacuum is 3e8 m/s

Answer 1

Answer:

$x=0.017 AU$  

Explanation:

We can use the equation of speed in terms of distance. We know that the speed of light is constant value so we will have:

$v=\frac{x}{t}$

$x=v*t$

$x=3*10^{8}*8.417$  

$x=2.53*10^{9}m$  

Now we know that $1 AU = 1.496*10^{11}m$

$x=0.017 AU$  

I hope it helps you!