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Question
A key of a mechanical piano struck gently and then struck again but much harder this time. In the second case
Options
sound will be louder but the pitch will not be different
sound will be louder and pitch will also be higher
sound will be louder but the pitch will be lower
both loudness and pitch will remain unaffected
Solution
sound will be louder but the pitch will not be different
Explanation:
When the key of a mechanical piano is struck harder, the sound will be louder as it will vibrate with greater amplitude but the pitch will not be different as it does not depend on how hard the key is struck.
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