Numerical -Frequency of oscillations for given time & peak striking voltage of circuit breaker

Q.  In a short circuit test on a circuit breaker, the following readings were obtained on single frequency transients

a. Time to reach the peak re striking voltage - 50μ sec
b. The peak re striking voltage, 100 kV

what will be the frequency of oscillations?
- Published on 17 Nov 15

a. 100 Hz
b. 1,000 Hz
c. 10,000 Hz
d. 10 Hz

ANSWER: 10,000 Hz

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