When a guitar string is sounded with a 440 Hz tuning fork, a beat frequency of 5 Hz is heard. If the experiment is repeated with a tuning fork of 437 Hz, the beat frequency is 8 Hz. The string frequency (Hz) is ....

When a guitar string is sounded with a 440 Hz tuning fork, a beat freq

1.	When a guitar string is sounded with a 440 Hz tuning fork, a beat frequency of 5 Hz is heard. If the experiment is repeated with a tuning fork of 437 Hz, the beat frequency is 8 Hz. The string frequency (Hz) is ....
Answer» 445 435 429 448 Solution :If frequency of guitar wire is 440 Hz then as per the STATEMENT, `f ~440 =5 implies f = 445 Hz OR f = 435 Hz` Also `f ~437 = 8 implies f = 445 Hz OR f = 429 Hz` `implies f = 445 Hz` (`because` If we take `f = 435 Hz` then `435 ~437 =2 ne 8` if we take `f = 429 Hz` then `429 ~440 =11 ne 5).`