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KCET 2004 Physics Solved Paper

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Question : 13

Total: 60

A beam of light of wavelength 600‌nm from a distant source falls on a single slit 1‌mm wide and the resulting diffraction pattern is observed on a screen 2m away. The distance between the first dark fringes on either side of the central bright fringe is .........

1.2‌mm
1.2‌cm
2.4‌cm
2.4‌mm

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