VR / AR / MR / XR

theta

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delta

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lambda

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beta

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pi

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omicron

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The phase difference between the red wave and the green wave is . . .

• 0 degrees

• 90 degrees

• 180 degrees

• 270 degrees

The phase difference between the red wave and the blue wave is . . .

• 0 degrees

• 90 degrees

• 180 degrees

• 270 degrees

Two waves which are phase coherent . . .

• are in a constant phase relation to each other

• have a phase difference of 0 degrees

(2 answers): Two waves which are phase coherent . . .

• can have different wavelengths

• must have the same wavelength

• can be different colours

• must be the same colour