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  • Help me please, Two tunning forks of frequencies n1and n2produces n beats per second, If n2and n known, n1may be given by

Two tunning forks of frequencies n1 and n2 produces n beats per second, If n2 and n known, n1 may be given by

  • Option 1)

    \frac{n_{2}}{n} + n_{2}

  • Option 2)

    n_{2}n

  • Option 3)

    n_{2} \pm n

  • Option 4)

    \frac{n_{2}}{n} - n_{2}

 

Answers (1)

best_answer

Beat frequency = no. of beats /s

n= n_{2}\sim n_{1}

\therefore n_{1}= n_{2}\pm n

 

Beat Frequency -

\Delta \nu = \left | \nu _{1}-\nu _{2} \right |

module of \left ( \nu _{1} -\nu _{2}\right )

 

- wherein

Where \nu _{1} \: and\: \nu _{2} are frequency of two wave differ slightly  in value of frequency.

 

 


Option 1)

\frac{n_{2}}{n} + n_{2}

This is incorrect

Option 2)

n_{2}n

This is incorrect

Option 3)

n_{2} \pm n

This is correct

Option 4)

\frac{n_{2}}{n} - n_{2}

This is incorrect

Posted by

Avinash

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