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SOUND (8TH SCIENCE)
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:
| Both loudness and pitch will remain unaffected |
| Sound will be louder and the pitch will also be higher |
| Sound will be louder but the pitch will not be different |
| Sound will be louder but the pitch will be lower |
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