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Arvind Borde
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Longer wavelength
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0.5(Wavelength)
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Narrower
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v and w.l. would go downSpacing gets closer
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Spacing;Not coherent
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Wavelength
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Diffraction
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a) Narrowsb) Widens
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0.0005 mm
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3553 nm
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0.00063 mm
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2.32X10^6 nm2.12X10^6 nm
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f=4.8X10^14 Hz
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0.032 rad = 1.8 deg
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0.00063 mm
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1022 nm
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angle: 0.00045rad width=0.54 cm