A key of a mechanical piano struck gently and then struck again but much harder this time. In the second case
Question:
A key of a mechanical piano struck gently and then struck again but much harder this time. In the second case
(a) sound will be louder but pitch will not be different
(b) sound will be louder and pitch
(c) sound will be louder but pitch will be lower
(d) both loudness and pitch will remain unaffected
Solution:
(a). Loudness depends on the amplitude of vibration.