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  • Help me answer: The speed of a wave in a certain medium is 960 m/s. If 3600 waves pass over a certain point in the medium in a minute. The wavelength is

The speed of a wave in a certain medium is 960 m/s. If 3600 waves pass over a certain point in the medium in a minute. The wavelength is 

  • Option 1)

    2 metres

  • Option 2)

    4 metres

  • Option 3)

    8 metres

  • Option 4)

    16 metres

 

Answers (1)

best_answer

v = 960m/s

\lambda = \frac{v}{\gamma } = \frac{960}{60} = 16 meters

 

Relation between phase difference and path difference -

Phase difference \left ( \Delta \phi \right )

= \frac{2\pi }{\lambda }\times path \: dif\! \! ference\left ( \Delta x \right )\\\lambda =wave\; length

-

 

 

 


Option 1)

2 metres

This is incorrect.

Option 2)

4 metres

This is incorrect.

Option 3)

8 metres

This is incorrect.

Option 4)

16 metres

This is correct.

Posted by

Plabita

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