Ex. 74 A tuning fork A of frequency 200 Hz produces 5 beats/sec. with another fork B. When the prongs of fork B are loaded with a little wax, the number of beats per second is 4. Find the frequency of B before loading.
Ex. 74 A tuning fork A of frequency 200 Hz produces 5 beats/sec. with another fork B. When the prongs of fork B are loaded with a little wax, the number of beats per second is 4. Find the frequency of B before loading.
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Transcribed Image Text:Ex. 74 A tuning fork A of frequency 200 Hz
produces 5 beats/sec. with another fork B.
When the prongs of fork B are loaded with a
little wax, the number of beats second is 4.
Find the frequency of B before loading.
per
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