__If a sine wave goes through 10 cycles in 20 ¬¨¬µs, the period is

1.	__If a sine wave goes through 10 cycles in 20 ¬¨¬µs, the period is__
A.	20 ¬¨¬µs
B.	4 ¬¨¬µs
C.	2 ¬¨¬µs
D.	100 ¬¨¬µs
Answer» D. 100 ¬¨¬µs

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