Physics (AS & A Level) · Oct / Nov 2021 · Paper 13 · Question 4
The output of a signal generator is connected to a cathode-ray oscilloscope (CRO). A trace is shown on the screen. The time-base of the CRO is set at 2.00 ms cm⁻¹. What is the frequency of the signal?
- A50 Hz
- B125 Hz
- C250 Hz
- D500 Hz
As printed in the paper
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Correct answer: B. 125 Hz
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