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Question

frequency of a sound wave is defined as 


  1. number of compressions/rarefactions per unit time 

  2. between occurrence of two valleys/peaks.

  3.  All of the above

  4. distance between two peaks.


Solution

The correct option is A

number of compressions/rarefactions per unit time 


Frequency is the number of oscillations per unit time. Hence, in other words, it can be defined as number of compressions/rarefactions per unit time

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