A tuning fork of frequency 480 Hz produces 10 beats per second when so – McqOptions

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1.	A tuning fork of frequency 480 Hz produces 10 beats per second when sounded with a vibrating sonometer string. What must have been the frequency of the string if a slight increase in tension produces lesser beats per second than before [NCERT 1984]
A.	460 Hz
B.	470 Hz
C.	480 Hz
D.	490 Hz
Answer» C. 480 Hz

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