Answer:
The Time taken for the light to reach the earth from
Proxima Centuri is [tex]1.338*10^{8}[/tex]seconds
Step-by-step explanation:
The distance of Proxima Centauri from earth in meters is;
distance(d)=[tex]4.014*10^{16}meters[/tex]
The speed of light in meters is;
speed (s)=[tex]3*10^{8} m/s^{2}[/tex]
Recall formula to find time taken given distance and speed;
Time(T)=[tex]\frac{distance(d)}{Speed(s)}[/tex]
time taken=[tex]\frac{4.014*10^{16}}{3*10^{8} } }[/tex]
time taken=[tex]1.338*10^{16-8}[/tex]
Time taken(T)=[tex]1.338*10^{8}[/tex]seconds
