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In a young's doule slit experiment, wave...

In a young's doule slit experiment, wavelength of light used is `lambda`. Let O is the centre of line joining the slits and C is centre of screen where interference pattern is being obtained. `theta` is the angular position of each slit with respect to C and `phi` is angular position of first maxima with respect to O. select the correct alternative

A

Fringe width obtained is `(lambda theta)/2`

B

Fringe width obtained is `(lambda)/(2theta)`

C

The distance between the slits is `(lambda)/(phi)`

D

The distance between slits and screen is `(lambda)/(2 phi theta)`

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The correct Answer is:
B, C, D
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