A Radio Station Broadcasts at 80 MHz $2.0 \times 10 ^ { 7 } \mathrm {~m}$

question 52

Multiple Choice

A radio station broadcasts at 80 MHz.How long does it take for this radio signal to travel a distance of $2.0 \times 10 ^ { 7 } \mathrm {~m}$ through space? (c = 3.0 × 10⁸ m/s)

• A)0.15 × 10^-2 s
• B)15 ms
• C)6.7 × 10^-2 s
• D)20 ms
• E)25 ms

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