Question

Tell me in detail that if we strike a steel tumbler with a metal spoon lightly we hear a feeble sound but if we hit the tumbler hard a loud sound is heard

Answer 1

The loudness or the magnitude of sound is dependent on the amplitude of the vibration made to make the sound.

So, when the amplitude of the vibration is more, the sound heard will be more, and if the amplitude is low, the sound will be low. 

Therefore, when a steel glass is struck lightly with a metal spoon, a feeble or a light sound is made. However, if it is struck hard, then a louder sound will be heard.

The loudness or the magnitude of sound will be directly proportional to the square of the amplitude of the vibration.