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  • I need help with To demonstrate the phenomenon of interference we require two sources which emit radiation of

To demonstrate the phenomenon of interference we require two sources which emit radiation of

  • Option 1)

    nearly the same frequency

  • Option 2)

    the same frequency

  • Option 3)

    different wavelength

  • Option 4)

    the same frequency and having a definite phase relationship.

 

Answers (1)

As we learnt in

Thin Film Interference in Transmitted light -

2\mu d=\left\{\begin{matrix} n\lambda \\ \left ( n+\frac{1}{2} \right )\lambda \end{matrix}\right.

- wherein

For constructive interference

For destructive interference

 

 

For interference phenomenon, two sources should emit radiation of the same frequency and having a definite phase relationship.

Correct option is 4.


Option 1)

nearly the same frequency

This is an incorrect option.

Option 2)

the same frequency

This is an incorrect option.

Option 3)

different wavelength

This is an incorrect option.

Option 4)

the same frequency and having a definite phase relationship.

This is the correct option.

Posted by

Sabhrant Ambastha

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