The amplitude of a damped oscillator decreases to 0.9 times its original value in 5s. In another 10s it will decreases to alpha times its original magnitude, where alpha is

The amplitude of a damped oscillator decreases to 0.9 times its origin

1.	The amplitude of a damped oscillator decreases to 0.9 times its original value in 5s. In another 10s it will decreases to alpha times its original magnitude, where alpha is
Answer» `0.81` `0.9` `0.729` `0.656` ANSWER :C