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Fill in the blanks :
1. The unit of frequency is_
2. Time taken by a body to complete one vibration is called_
3. Unwanted sound is called_
4. Loudness of sound depends on_of vibration.
5. Shrillness of sound is determined by the_of vibrations.
6. When we touch a source of sound, we can feel the_
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I do not please follow me
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1q 0
2q sonar vibrations
3q !
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