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Drupady [299]
3 years ago
5

When the adjustable mirror on the Michelson interferometer is moved 20 wavelengths, how many fringe pattern shifts would be coun

ted
Physics
1 answer:
Igoryamba3 years ago
7 0

Answer:

The number of  fringe pattern shift is   m  = 40

Explanation:

 From the question we are told that

      The  Michelson interferometer is moved 20 wavelengths i.e  20 \lambda

Generally the distance which the  Michelson interferometer is moved is mathematically represented as

         d =  \frac{m  * \lambda}{2}

Here m is the number of  fringe pattern shift

     So

         20 \lambda =  \frac{m  * \lambda}{2}

         40  \lambda =  m * \lambda

        m  = 40

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Explanation:

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First of all, we need to find the time t at which the ball has travelled halfway to the chatcher, i.e. at a distance of x=14.0/2=7.0 m. This can be found by using the relationship between distance, time and velocity along the horizontal direction:

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