Light of wavelength \[589.3\,nm\] is incident normally on the slit of width \[0.1\,mm.\] What will be the angular width of the central diffraction maximum at a distance of \[1\,m\] from the slit [BHU (Med.) 1999]

Light of wavelength \[589.3\,nm\] is incident normally on the slit of

1.	Light of wavelength \[589.3\,nm\] is incident normally on the slit of width \[0.1\,mm.\] What will be the angular width of the central diffraction maximum at a distance of \[1\,m\] from the slit [BHU (Med.) 1999]
A.	\[0.68{}^\circ \]
B.	\[1.02{}^\circ \]
C.	\[3\times {{10}^{6}}Hz\]
D.	None of these
Answer» B. \[1.02{}^\circ \]

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Light of wavelength \[589.3\,nm\] is incident normally on the slit of width \[0.1\,mm.\] What will be the angular width of the central diffraction maximum at a distance of \[1\,m\] from the slit [BHU (Med.) 1999]

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