The phase angle between two sine waves can be determined from the Lissajous plot of these two waveforms when the oscillloscope is set to X-Y mode. The phase angle θ = sin-1(A/B) where A and B are defined in the diagram below.

Determine the phase angle (in degrees) using the Lissajous plot on the oscilloscope screen below.

DO NOT INCLUDE YOUR UNITS IN THE ANSWER AS THIS QUIZ QUESTION GRADES ONLY NUMERICAL VALUES.

The oscilloscope settings are as follows:

CH1: 5 Volts / DIV

CH2: 5 Volts / DIV