Question

A key of mechanical piano is first struck gently and then struck again but much harder this time. What kind of change in sound will you observe in the second case: *

2 points

(a) Sound will be louder but the pitch will not be different

(b) Sound will be louder and the pitch will also be higher

(c) Sound will be louder but the pitch will be lower

(d) Both loudness and pitch will remain unaffected

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Answer 1

Answer:

option b is correct because as the sound increases pitch also increases gradually. So when struck h.ard a piano produces a louder sound with a high pitch