Question

On vibrating a tuning fork of frequency $256\text{Hz}$ with another fork $A$, six beats per second are heard. On loading $A$, again six beats per second are heard. The frequency of $A$ will be

• A. $244\text{Hz}$
• B. $250\text{Hz}$
• C. $262\text{Hz}$
• D. $268\text{Hz}$

Answer 1

The correct option is C $262\text{Hz}$

$|{\nu }_2-{\nu }_1|=\text{number of beats per second}$

The probable frequency of $A$ are $250\text{Hz}\text{or}262\text{Hz}.$