Question

The Sun is 150 million kilometers away from Earth. How long does it take for light to reach Earth from the Sun? (Hint: Light travels at 3 × 10^5 m/s)A. 0.50 secondsB. 5.0 secondsC. 50 secondsD. 500 seconds

Answer 1

Given

The Sun is d=150 million kilometers away from Earth.

Light travels at v=3 × 10^5 m/s.

To find

How long does it take for light to reach Earth from the Sun?

Step-by-step explanation

We know

Time taken is given by

`\begin{gathered} t=(d)/(v) \\ \Rightarrow t=(150*10^6)/(3*10^5) \\ \Rightarrow t=500sec \end{gathered}`

Conclusion

The time taken is D.500 sec