The trace shown appears on a cathode-ray oscilloscope screen with the time base set to 2 ms/cm. What is the frequency of the signal?
Correct answer: B. 125 Hz
- A. 40 Hz
- B. 125 Hz
- C. 250 Hz
- D. 500 Hz
Explanation
The explanation is given below : The period of the oscilloscope T is:The explanation is given below :
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About Waves
Progressive waves transfer energy through oscillations, with wavelength, frequency, amplitude and wave speed related by v = fλ; sound speed depends on the medium. Superposition produces interference and stationary waves in strings and organ pipes, while simple harmonic motion describes the oscillation itself and must be distinguished from wave propagation.
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