In a diffraction pattern due to a single slit of width a, the first minimum is observed at an an...

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In a diffraction pattern due to a single slit of width a, the first minimum is observed at an angle \( 30^{\circ} \) when light of wavelength \( 5000 \)math xmlns=http://www.w3.org/1998/Math/MathMLmovermiA/mimo∘/mo/mover/math is incident on the slit. The first secondary maximum is observed at an angle of
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