InterviewSolution
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InterviewSolution
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The displacement `y` of a particle executing periodic motion is given by `y = 4 cos^(2) ((1)/(2)t) sin(1000t)` This expression may be considereed to be a result of the superposition ofA. (a) twoB. ( b ) threeC. ( c ) fourD. (d) five |
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Answer» Correct Answer - B (b) `y = 4cos^(2) ((t)/(2)) sin(1000t) = 2(2cos^(2)(t)/(2)sin1000t)` `= 2[cos t + 1]sin 1000t` `= 2cos t sin 1000t + 2 sin 1000t` `= sin 1000t + sin 999t + 2 sin 1000t` |
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