Difficulty: Easy
Correct Answer: 150 ms
Explanation:
Introduction:
Oscilloscope time measurements rely on counting divisions across the graticule and multiplying by the timebase setting (time per division). This provides a direct way to determine the period T of a repetitive waveform and, by inversion, its frequency f = 1/T.
Given Data / Assumptions:
Concept / Approach:
The period equals the number of divisions per cycle multiplied by the time per division. Once T is known, frequency can be derived if needed. This is the most fundamental oscilloscope time measurement technique.
Step-by-Step Solution:
Verification / Alternative check:
Measuring two or more cycles and dividing by the number of cycles gives the same period and can reduce reading error if the trace is noisy or the trigger is marginal.
Why Other Options Are Wrong:
Common Pitfalls:
Final Answer:
150 ms
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