Coherent light of wavelength 575 nm falls on a double-slit and the third-order bright fringe is seen at an angle of 6.5° away from the centerline.How far apart are the double slits?
A)5.0 μm
B)10 μm
C)15 μm
D)20 μm

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The Answer of Coherent light of wavelength 575 nm falls on a double-slit and the third-order bright fringe is seen at an angle of 6.5° away from the centerline.How far apart are the double slits?
A)5.0 μm
B)10 μm
C)15 μm
D)20 μm

Coherent Light of Wavelength 575 Nm Falls on a Double-Slit