Blue light of wavelength 450 nm passes through a 020-mm
Blue light of wavelength 450 nm passes through a 0.20-mm wide slit and illuminates a screen 1.2 m away. How wide is the central maximum of the diffraction pattern?
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blue light of wavelength 450 nm passes through a 020-mm wide slit and illuminates a screen 12 m away how wide is the
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