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In Young's two slit experiment with mono...

In Young's two slit experiment with monochromatic light fringes are obtained on a screen placed at a distance D from the slits . If the screen is moved by `5 xx 10^(-2)` m towards the slits the change in fringe width `3 xx 10^(-5)` m. If the distance between the slits is `10^(-3)` m calulate the wavelength of the light used.

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The correct Answer is:
6000 Å
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