Answer:
(a) [tex]5.88\times 10^{12}mi[/tex]
Explanation:
We have given speed of light [tex]c=3\times 10^8m/sec[/tex]
Given time = 1 year =365 days
We know that in 1 minute = 60 sec
1 hour = 60×60 = 3600 sec
In one day = 24 hour = 24×60×60=86400 sec
So in 365 days = 365×86400[tex]=3.1536\times 10^7sec[/tex]
We know that distance = speed ×time[tex]=3.1536\times 10^7\times 3\times 10^8=9.46\times 10^{15}m[/tex]
We have given that 1 mi = 1609 m
So [tex]9.46\times 10^{15}m=\frac{9.46\times 10^{15}}{1609}=5.88\times 10^{12}mi[/tex]So option (a) is correct
