A-LevelPhysicsWaves9702/12 · Oct/Nov 2013 · Q41 Mark
A signal that repeats periodically is displayed on the screen of a cathode-ray oscilloscope. [Figure 4.1] The screen has 1 cm squares and the time base is set at 2.00 ms cm⁻¹. What is the frequency of this periodic signal?
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
A50 Hz
B100 Hz
C125 Hz
D200 Hz
✓ Correct answer
B: 100 Hz
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