Exam-style question
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What is the period of a wave with a frequency of 25 Hz?.
- A.0.04 s
- B.0.1 s
- C.0.2 s
- D.0.5 s
Model answer
What a good answer should say
- 0.04 s
Explanation
Why this works
The period (T) can be calculated using the formula T = 1 / f. Substituting the frequency, T = 1 / 25 Hz = 0.04 s.
Therefore, the period of the wave is 0.04 s.
Common mistake
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