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CAIE A-Level Physics AS 7.1.3 The Use of the Time Base and Y Gain of a Cathode Ray Oscilloscope Cro to Questions

Use CRO time-base and y-gain controls to determine time intervals, frequencies and signal amplitudes.

Syllabus
2028–2030
Course
Physics 9702
Level
AS

Exam points

  • Use CRO time-base and y-gain controls to determine time intervals, frequencies and signal amplitudes.

CAIE A-Level Physics AS 7.1.3 The Use of the Time Base and Y Gain of a Cathode Ray Oscilloscope Cro to Questions question 1

[Maximum number: 2]

The waveform of a sound wave is displayed on the screen of a cathode-ray oscilloscope (c.r.o.), as shown in Fig. 5.1.

Fig. 5.1

Fig. 5.1

The time-base setting is 0.20 ms cm−10.20 \mathrm{~ms} \mathrm{~cm}^{-1}.
Determine the frequency of the sound wave.

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