1.

What will be the angular width of central maxima in Fraunhoffer diffraction when light of wavelength \[6000\,{AA}\] is used and slit width is \[12\times {{10}^{-5}}cm.\] [RPMT 2004]

A. 2 rad
B. 3 rad
C. \[\frac{C}{5}\]   
D. 8 rad
Answer» D. 8 rad


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