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1. The Lissajous pattern observed on screen of CRO is a straight line inclined at 45° to x axis. If X-plate input is 2 sin ωt, the Y-plate input is
(A): 2 sin ωt
(B): 2 sin (ωt + 45°)
(C): 2 sin (ωt - 45°)
(D): 22 sin ωt + 45°)
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