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What is the frequency of an ac signal ha...

What is the frequency of an ac signal having a time period of 50 nanosecond?

A

20 KHz

B

20 MHz

C

2000 Hz

D

200 MHz

Text Solution

Verified by Experts

The correct Answer is:
B
`T = 1/50` nanosecond = `1/(50 xx 10^(-9)) = (1000 xx 10^6)/(50)`
`=20 xx 10^(6) = 20 MHz`.
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MARVEL PUBLICATION-ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS -TEST YOUR GRASP - 16
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