Engineering Physics MCQs – Certification Test 1155
MCQ 1155: If a wave traveling along a string is y(x,t)=0.0032sin(72.1x-2.72t), in which numerical constants are in SI units i.e. 0.0032m, 72.1rad/m and 2.72rad/s, then displacement of wave at x=22.5cm and t=18.9s is:
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