PhysicsMedium100×since 2002Q8116The amplitude of a damped oscillator decreases to 0.90.90.9 times its original magnitude in 5s5s5s. In another 10s10s10s it will decrease to α\alphaα times its original magnitude, where α\alphaα equalsA0.70.70.7B0.810.810.81C0.7290.7290.729D0.60.60.6Check answerSkip