A key of a mechanical piano is struck gently and then struck again but much harder this time. In the second case :

Options

A. sound will be louder but pitch will not be different
B. sound will be louder and will also be higher
C. Sound will be louder but pitch will be lower
D. both loudness and pitch will remain unaffected

Answer

C

Explanation

In the sound case, sound will be loader but pitch will be lower, because pitch of sound directly depends on frequency.