Question

The microprocessor in a modern laptop computer runs on a 2.9 GHzGHz clock.

Part A

Assuming that the electrical signals in the computer travel at two-thirds of the speed of light, how far does a signal travel in one clock cycle?

Express your answer in meters.

dd =

mm

Answer 1

We have tabulated the answer for your convenience.

S. No.	Aspect or statement or Question	Description / Reason / Calculation / Value
(1)	Frequency f	2.9GHz ==> Time period, T = 1/f = 1/2.9GHz ==> Time period, T = (1/2.9*10^9) s = 3.448*10^-10 s
(2)	Speed V	(2/3)*speed of light =(2/3)*(3*10^8)m/s = 2*10^8 m/s
Part (A)	Distance traveled by signal travel in one clock cycle, D	D = V*T = (2*10^8 m/s) * (3.448*10^-10 s) = 6.9*10^-2 m (ANSWER) ----IN TERMS OF metres Or 69 mm

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