Question

Which part of piano vibrate to make sound

Answer 1

A piano has strings which are struck by small "hammers" when you press the keys. The strings vibrate and create the sound, which is amplified by the sound board.

Answer 2

good morning dear....
the vibrations are produced by the soundboard of the piano through the bridges and a loud sound resonates as a result of vibration in the air....

that's Riya ✌✌✌....