Oscilloscope Use
Oscilloscope time base calibration error affects:
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About This Question
- Subject
- physics
- Chapter
- experimental skills and error analysis
- Topic
- oscilloscope use
- Difficulty
- Hard
- Year
- 2025
Solution
Correct Answer:
Frequency and time interval measurements
The Time Base control of a Cathode Ray Oscilloscope (CRO) determines the speed at which the electron beam sweeps horizontally.
- If the time base is incorrectly calibrated, the horizontal 'centimeters' on the screen won't represent the correct milliseconds.
- Since f=1/T, errors in measuring the time period (T) lead directly to errors in frequency.
This hard difficulty physics question is from the chapter experimental skills and error analysis, covering the topic of oscilloscope use. It appeared in the 2025 exam.
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