Difficulty: Easy
Correct Answer: 5.38 ms
Explanation:
Introduction:
Radio and microwave systems rely on finite propagation speed—approximately the speed of light in free space. Estimating one-way delay is vital for ranging, synchronization, and understanding latency in long-distance links.
Given Data / Assumptions:
Concept / Approach:
Travel time t equals distance divided by speed: t = D / c. Using miles keeps arithmetic simple for the given distance. The result is converted to milliseconds for readability.
Step-by-Step Solution:
Verification / Alternative check:
Using SI: 1,000 miles ≈ 1,609 km; c ≈ 300,000 km/s → t ≈ 1,609 / 300,000 s ≈ 0.005363 s (close to the miles-based result). Minor differences stem from rounding c and unit conversions.
Why Other Options Are Wrong:
Common Pitfalls:
Final Answer:
5.38 ms
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