A particle executes SHM of amplitude A about x = 0. Which cannot be a possible phase difference between the positions x = +A/2 and x = -A/√2?
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Question

A particle executes SHM of amplitude A about x = 0. Which cannot be a possible phase difference between the positions x = +A/2 and x = −A/√2?

G1 Physics · Accepted Answer

For x=+A/√2 and x=−A/√2, the possible phases on the SHM circle generate phase separations 75°, 165° and 195° depending on directions, but 135° is not compatible with these two specified positions. Hence 135° cannot occur. Correct option: 3.