When two tuning forks A and B are sounded together, 4 beats per second are head. The frequency of the fork B is 348 Hz. When one of the prongs of the fork A is filled and sounded with B, the beat frequency increases, then the frequency of the fork A is

When two tuning forks A and B are sounded together, 4 beats per second are heard.The frequency of the fork B is 384 Hz. When one of the prongs of the fork A is filled and sounded with B, the beat frequency increases, then the frequency of the fork A is:

When two tunning forks A and B are sounded together , 4 beats per second are heard . The frequency of the fork B is 384 Hz . When one of the prongs of the fork A is filled and sounded with B , the beat frequency increases , then the frequency of the fork A is

When tuning forks A and B are sounded together 5 beats per second are heard. Frequency of A is 250Hz . On loading A with wax 2 beats per second are produced with B. The frequency of B is

When two tuning forks A and B are sounded together x beats//s are heard. Frequency A is n . Now when one prong of B is loaded with a little wax, the number of beats/s decreases. The frequency of fork B is

Two tuning forks when sounded together produce one beat per 0.4 s. Then the difference of their frequencies is

Two tuning forks when sounded together produced 4beats//sec . The frequency of one fork is 256. The number of beats heard increases when the fork of frequency 256 is loaded with wax. The frequency of the other fork is