WAEC - Physics (2022 - No. 19)

The period of a 10 kHz radio wave traveling at 10\(^{8}\) ms\(^{-1}\) is--

3.0 x 10\(^{-5}\)s

1.0 x 10\(^{-4}\) s

1.0 x 10\(^{4}\)s

3.0 x 10\(^{4}\)s

The relation between period and frequency is that one is the inverse of the other.

By definition:

Frequency = 1/period.

period = 1/frequency → 1/ 10,000

period = 0.0001 or 1.0 x 10\(^{-4}\) s