Question

Q)Lissjous pattern of waves can be obtained only by -

1) Two waves

2) Three waves

3) Four waves

4) None of the above

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Answer 1

Answer:

1. two waves

Explanation:

Old timers who have started out their careers using an analog oscilloscope probably remember using the classic Lissajous pattern to measure the phase difference of two sine waves. It can be measured by cross plotting the two sine waveforms on the X-Y display in ALICE as shown in Figure 2

Answer 2

the answer is three waves