SHMHard

Question

The amplitude of a damped oscillator decreases to 0.9 times its original magnitude in 5s. In another 10s it will decrease to α times its original magnitude, where α equals :

Options

A.0.7
B.0.81
C.0.729
D.0.6

Solution



Also 0.9A0 = A0
so A2 = (0.9A0) (0.9)2 = 0.729 A0

Create a free account to view solution

View Solution Free
Topic: SHM·Practice all SHM questions

More SHM Questions

The position of a particle in motion is given by y = Csinωt + Dcosωt w.r.t. origin. Then motion of the particl...The mass of particle executing S.H.M. is 1 gm. If its periodic time is π seconds, the value of force constant is :...The maximum velocity of simple harmonic motion represented by y = 3 sinis given by...The displacement of the particle from its mean position (in metre) varies with time (in second) according to the equatio...The maximum K.E. of a oscillating spring is 5 joules and its amplitude 10 cms. The force constant of the spring is :...