Two tuning forks having frequency 256 Hz (A) and 262 Hz (B) tuning fork. A produces some beats per second with unknown tuning fork, same unknown tuning fork produce double beats per second from B tuning fork then the frequency of unknown tuning fork is :-

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Q. A tuning fork

A

of unknown frequency produces

4

beats per second when sounded with another tuning fork

B

of frequency

254 Hz

. When tuning fork

A

is loaded with wax, it still gives

4

beats per second with tuning fork

B

. The initial unknown frequency of tuning fork

A

Q. A tuning fork

A

of unknown frequency produces

4

beats per second when sounded with another tuning fork

B

of frequency

254 Hz

. When tuning fork

A

is loaded with wax, it still gives

4

beats per second with tuning fork

A

. The initial unknown frequency of tuning fork

A

A tuning fork of frequency 100 when sounded together with another tuning fork of unknown frequency produces 2 beats per second. On loading the tuning fork whose frequency is not known and sounded together with a tuning fork of frequency 100 produces one beat, then the frequency of the other tuning fork is

[NCERT 1977]

Q. A tuning fork A of frequency