Turning fork A of frequency 305 Hz produces 5 beats `s^(-1)` with another turing fork B. After filling tuning fork B, it produces 3 beats `s^(-1)` wit

Question

Turning fork A of frequency 305 Hz produces 5 beats `s^(-1)` with another turing fork B. After filling tuning fork B, it produces 3 beats `s^(-1)` wit

Turning fork A of frequency 305 Hz produces 5 beats `s^(-1)` with another turing fork B. After filling tuning fork B, it produces 3 beats `s^(-1)` with A. The frequency of B before filling was
A. 300 Hz
B. 313 Hz
C. 310 Hz
D. 308 Hz

Monjur Alahi

6 views

2025-01-04 04:42

1 Answers

Related Questions

A set of tuning forks is arranged in ascending order of frequency each tuning fork gives 5 beats s with the preceding one. If frequency of the firs tu

2 Answers 11 Views

Two tuning forks A and B give 4 beats/s when sounded together. If the fork B is loaded with wax 6 beats/s are heard. If the frequency of fork A is 320

2 Answers 6 Views

Nine tuning forks are arranged in order of increasing frequency. Each tuning fork produces 4 beats per second when sounded with either of its neighbou

2 Answers 4 Views

A tuning fork A produces 4 beats/ s with tuning fork, B of fequency 256 Hz. When the fork A is filled beats are found to occurs at shorter intervals,

2 Answers 8 Views

Four beats are produced on vibrating an unknown tuning fork with another fork of frequency 252 Hz. On loading the unknown fork with little wax and vib

2 Answers 6 Views

A set of tuning forks is arranged in ascending order of frequency. Each tuning fork gives 5 beats per second with the preceding one. If the frequency

2 Answers 7 Views

When a tuning fork A and B are sounded together,the number of beats heard are 4 per second.When tuning fork A is field,the number of beats heard per s

2 Answers 5 Views

The frequency of tuning fork A is 2% more than the frequency of a standard tuning fork. The frequency of a tuning fork B is 3% less than the frequency

2 Answers 7 Views

In an experiment with sonometer, a tuning fork of frequency 256 Hz resonates with a length of 25 cm and another tuning fork resonates with a length of

2 Answers 5 Views

A somometer wire produces 2 beats per second with a tuning fork, when the length of the wire is either 102cm or 104 cm . The frequency of the tuning f

2 Answers 4 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Correct Answer - A
The phenomenon of beats is used in the determination of unknown frequencies.
Suppose `v_(2)` is the unknown frequency of a tuning fork B. Let this fork B produce m beats per second with another tuning fork A of known frequency `v_(1)`, As number of beats/s is equal to difference in frequency of two sources.
Therefore, `v_(2) = v_(1) +- m`
When the prong of fork B is filed a little, it becomes lighter and its frequency of vibration increases on sounding the filed fork B with fork A, we count the number of beats `s^(-1)`. Proceeding as, we conclude that, if number of beats `s^(-1)` on filing fork B of unknown frequency increases, m would So, frequency of tuning fork B
`= 305 +- 5 = 310 Hz, 300Hz`
Since, on filing tuning fork B, number of beats decreases. This means that frequency of B should be less ie, 300 Hz