

MCQOPTIONS
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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. \[1.02{}^\circ \] | |