A slit of width (a) is illuminated by a monochromatic light wavelength 4500 Å at normal incident. Calculate the value of (a) when (1) the first minimum falls at an angle of diffraction of 60° (2) the first maximum falls at angle of diffraction of 60°.
A slit of width (a) is illuminated by a monochromatic light wavelength 4500 Å at normal incident. Calculate the value of (a) when (1) the first minimum falls at an angle of diffraction of 60° (2) the first maximum falls at angle of diffraction of 60°.
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Transcribed Image Text:A slit of width (a) is illuminated by a
monochromatic light wavelength 4500 Å at
normal incident.
Calculate the value of (a)
when (1) the first minimum falls at an angle of
diffraction of 60° (2) the first maximum falls at
angle of diffraction of 60°.
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