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

question 112

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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