Final answer:
To find the period of a 60-hertz electromagnetic wave, use the formula T = 1/f, which results in a period of 0.0167 seconds. The closest answer choice provided, without going over, is B) 0.02 s.
Step-by-step explanation:
The question asks to determine the period of a 60-hertz electromagnetic wave. In physics, the period (T) of a wave is the reciprocal of the frequency (f), which is given by the equation T = 1/f.
Given that the frequency is 60 hertz (Hz), we can calculate the period as follows:
- Write down the formula: T = 1/f
- Substitute the given frequency into the formula: T = 1/60 Hz
- Calculate the period: T = 0.0167 seconds
The answer that is closest to our calculated value, without going over (which would allow for repeating or irrelevant options), is 0.02 seconds. So the correct option would be B) 0.02 s.