The time taken by radio signal to reach on earth is 0.118 second.
The relation between distance , time and speed is given as,
[tex]Distance=speed * time\\
\\
time=\frac{Distance}{Speed} [/tex]
Given that, Speed of radio signal is [tex]3*10^{8} m/s[/tex] and Distance between satellite and earth is [tex]3.54*10^{7} m[/tex].
The time taken by radio signal to reach on earth is,
[tex]time=\frac{3.54*10^{7} }{3*10^{8} } =0.118s[/tex]
Therefore, The time taken by radio signal to reach on earth is 0.118 second.
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