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The amplitude of a damped oscillator decreases to 0.9 times its original magnitude is 5s. In another 10s it will decrease to a times its original magnitude, where a equals. (1) 0.81 (2) 0.729 (3) 0.6 (4) 0.7

The amplitude of a damped oscillator decreases to 0.9 times its original magnitude is 5s. In another 10s it will decrease to a times its original magnitude, where a equals. (1) 0.81 (2) 0.729 (3) 0.6 (4) 0.7

Grade:upto college level

1 Answers

Vaibhav sethia
26 Points
4 years ago
For damped oscillation A=A°e^-kt By putting the values in it for two cases and dividing we get Alpha =0.729

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