What is the frequency of a wave with a period of 7s? 2.4E-3Hz ) 0.14 Hz 8.57 Hz ) 7 Hz

To find the frequency of a wave with a period of 7 seconds, we can use the formula:<br /><br />Frequency (f) = 1 / Period (T)<br /><br />Given that the period (T) is 7 seconds, we can substitute this value into the formula:<br /><br />Frequency (f) = 1 / 7 seconds<br /><br />Calculating this, we get:<br /><br />Frequency (f) = 0.14 Hz<br /><br />Therefore, the correct answer is 0.14 Hz.