A tuning fork A gives 4 beats per sec with a tuning fork B of frequency 120 Hz . When B is filed slightly beats disappear . Frequency od A Is

A tuning fork A gives 4 beats per sec with a tuning fork B of frequenc

1.	A tuning fork A gives 4 beats per sec with a tuning fork B of frequency 120 Hz . When B is filed slightly beats disappear . Frequency od A Is
Answer» 116 Hz. 124 Hz. 122 Hz. 118 Hz. Answer :B

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A tuning fork A gives 4 beats per sec with a tuning fork B of frequency 120 Hz . When B is filed slightly beats disappear . Frequency od A Is

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