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In single slit diffraction a = 0.14 mm, ...

In single slit diffraction a = 0.14 mm, D = 2 m and distance of second dark band from central maxima is 1.6 cm . The wavelength of light is

A

`6500 overset (@)(A)`

B

`7500 overset (@)(A)`

C

`5600 overset (@)(A)`

D

`8500 overset (@)(A)`

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