In a token ring network, the transmission speed is 107 bps

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In a token ring network, the transmission speed is 10⁷ bps and the propagation speed is 200 m/ms. The 1-bit delay in this network is equivalent to

1. 500 m of cable
2. 200 m of cable
3. 20 m of cable
4. 50 m of cable

Correct Option: C

10⁷ bits require time = 1 s
⇒ 1 Bit require = 1/10⁷ s (unitary method)

⇒	1	= 10^{-6 / 10} s =	1	ms
	10 × 10⁶		10

Now, 1 ms = 200 m cable
⇒ 1/10 ms = 20 m cable