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UGC-NET | UGC NET CS 2014 Dec – III | Question 28
  • Last Updated : 03 Jul, 2018

What is the propagation time if the distance between the two points is 48,000 ? Assume the propagation speed to be 2.4 × 108 metre/second in cable.
(A) 0.5 ms
(B) 20 ms
(C) 50ms
(D) 200ms


Answer: (D)

Explanation: We know that propagation time = distance between two point / propagation speed.
Distance between two point = 48000 km = 48 x 106.
Propagation speed = 2.4 × 108.
propagation time = 48 x 106 / 2.4 × 108
= 0.2 sec = 200 ms.
So, option (D) is correct.

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