For a 100 km cable with a propagation speed of 2 * 10^8 m/s, what is the propagation delay?
Q1. For a 100 km cable with a propagation speed of 2 * 10^8 m/s, what is the propagation delay?
Answer: 0.5 ms
Explanation: Propagation delay = distance / speed = (100 * 1000) / (2 * 10^8) = 0.5 ms.