In a Y.D.S.E, light of wavelength 500 nm...

In a Y.D.S.E, light of wavelength 500 nm is used. The separation between brigh fringes is 7.5 mm. Calculate the separation between the bright fringes if the light is replaced by another light of wavelength 650 nm.

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The correct Answer is:

`9.75 mm`

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