Question

Is sound produced audible or inaudible by human ear?​

Answer 1

Answer:

Our ears cannot hear sounds of such low frequencies. It is an inaudible sound which cannot be heard by us. An object must vibrate at the rate of at least 20 times per second to be able to produce audible sound.

All the best for the test

Answer 2

Answer:

Our ears cannot hear sounds of such low frequencies. It is an inaudible sound which cannot be heard by us. An object must vibrate at the rate of at least 20 times per second to be able to produce audible sound

Hope it helps ヾ(＾-＾)ノ