1. which of the following is a sound property.
A. Decibel B. Pitch C. Tuning fork D. Vibrations
2. How do you call tge sound that is soft, pleasant and cannot cause disturbance?
A. Harmonious B. Instrumental C. Noise D. Unpleasant
3.Which of the following does not affect the pitch of sound?
A. State of materials B. Amount of materials C. Diameter of the object D. Temperature of materials
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