A beam of light of wavelength 600 nm from a distant source falls normally on a single-slit, 1 mm wide, and the resulting diffraction pattern is obtained on a screen 2.0 away. The distance between the first dark fringes on either side of the central bright fringe is

A beam of light of wavelength 600 nm from a distant source falls norma

1.	A beam of light of wavelength 600 nm from a distant source falls normally on a single-slit, 1 mm wide, and the resulting diffraction pattern is obtained on a screen 2.0 away. The distance between the first dark fringes on either side of the central bright fringe is
Answer» 1.2 mm 1.2 cm 2.4 cm 2.4 mm Solution :Distance between the FIRST dark fringe on either SIDE of CENTRAL bright fringe`=(2Dlamda)/(a)` `=(2xx2.0xx(600xx10^(-9)))/((1xx10^(-3)))=2.4xx10^(-3)m or 2.44mm`.

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A beam of light of wavelength 600 nm from a distant source falls normally on a single-slit, 1 mm wide, and the resulting diffraction pattern is obtained on a screen 2.0 away. The distance between the first dark fringes on either side of the central bright fringe is

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