Let n2 is the unknown frequency of tuning fork B, and this tuning fork B give x beats per second with another tuning fork of given frequency n1.
As number of beat/sec is same to the difference in frequencies of two sources, therefore n2 = n1 ± x
The positive/negative sign of x may be defined in the following two ways:
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By loading
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By filing
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If B is loaded with wax so its frequency decreases
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If B is filed, its frequency increases
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If number of beats decreases n2 = n1 + x
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If number of beats decreases n2 = n1- x
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If number of beats Increases n2 = n1 - x
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If number of beats Increases n2 = n1 + x
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If number of beats remains unchanged n2 = n1 + x
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If number of beats remains unchanged n2 = n1 -x
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If number of beats becomes zero n2 = n1 + x
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If number of beats becomes zero n2 = n1 - x
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If A is loaded with wax its frequency decreases
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If A is filed, its frequency increases
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If number of beats decreases n2 = n1 - x
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If number of beats decreases n2 = n1+ x
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If number of beats increases n2 = n1+ x
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If number of beats Increases n2 = n1 - x
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If number of beats remains unchanged n2 = n1 - x
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If number of beats remains unchanged n2 = n1 + x
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If number of beats becomes zero n2 = n1 - x
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If no of beats becomes zero n2 = n1 + x
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