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A beam of light consisting of two wavelength , `6500 A^(@)` and `5200 A^(@)` is used to obtain interference fringes in a Young's double slit experiment `(1Å = 10^(-10)m)`. The distance between the slits 2.0 mm and the distance between the plane of the slits and the screen is 120 cm. Find the distance of the third bright fringe on the screen from the central maximum for the wavelength `6500 Å`.

A

`0.117` cm

B

`0.28` cm

C

`0.05` cm

D

`0.3` cm

Text Solution

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The correct Answer is:
A
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