At a fixed point on a stretched string

PHYSICS · Single correct · CBSE · Physics · Waves · Waves

Problem

At a fixed point on a stretched string, the displacement–time graph shows that 0.015 s elapses between a crest and the very next trough. What is the period of the wave? (a) 0.060 s0.060\ \text{s} (b) 0.015 s0.015\ \text{s} (c) 0.030 s0.030\ \text{s} (d) 0.045 s0.045\ \text{s}

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