1.

In Young's double slit experiment, the distance between the slits is 1 mm and that between slit and screen is 1 meter and 10th fringe is 5 mm away from the central bright fringe, then wavelength of light used will be     [RPMT 1997]

A. \[5000\,\,{AA}\]
B. \[6000\,\,{AA}\]
C. \[7000\,\,{AA}\]
D. \[8000\,\,{AA}\]
Answer» B. \[6000\,\,{AA}\]


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