7.2a Ex2 MJ20 P12 Q23 CRO Readings | AS Waves | Cambridge A Level 9702 Physics

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Example 2 - 9702/12/M/J/20: A microphone connected to the Y-plates of a cathode-ray oscilloscope (CRO) is placed in front of a loudspeaker. The trace on the screen of the CRO is shown.

The time-base setting is 0.5 ms cm^–1 and the Y-plate sensitivity is 0.2 mV cm^–1.
What is the frequency of the sound from the loudspeaker and what is the amplitude of the trace
on the CRO?
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omg gurl you are such a good teacher I was so confused about this for oober long, thakyou also you are v.pretty, anyway have a nice day

moonie
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you seem like such a cool person, loved it hahah

ezzatahir
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thanks for this, you're brilliant

tayamikaa
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am i the only one who didnt understand how she got her amplitude

sarahhasan
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