Light of wavelength 5800 Å is incident normally on a slit of width 0.20 mm. A diffraction pattern is observed on screen 2 m away from the slit. From the central bright fringe, the distance of the first dark fringe on either side is

Light of wavelength 5800 Å is incident normally on a slit of width 0

1.	Light of wavelength 5800 Å is incident normally on a slit of width 0.20 mm. A diffraction pattern is observed on screen 2 m away from the slit. From the central bright fringe, the distance of the first dark fringe on either side is
A.	2.4 mm
B.	5.8 mm
C.	6.4 mm
D.	1.2 mm
Answer» C. 6.4 mm

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Light of wavelength 5800 Å is incident normally on a slit of width 0.20 mm. A diffraction pattern is observed on screen 2 m away from the slit. From the central bright fringe, the distance of the first dark fringe on either side is

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