Teaching TN TRB EE Test Series Electrical and Electronics Measurements Cathode Ray Oscilloscope

A Lissajous pattern on an oscilloscope has 5 horizontal tangencies and 2 vertical tangencies. The frequency of the horizontal input is 1000 Hz. What is the frequency of the vertical input?

1

400 Hz

2

2500 Hz

3

4000 Hz

4

5000 Hz

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