A parallel beam of light of wavelength 4000 Å passes through a slit of width 5\times10^{-3}M. The angular spread of the central maxima in the diffraction pattern is

Correct Answer is : 1.6×10−4 rad

KEAM 2018 Physics and Chemistry Paper

Question : 47 of 120

Marks: +1, -0

A parallel beam of light of wavelength 4000 Å passes through a slit of width 5×10−3M. The angular spread of the central maxima in the diffraction pattern is

1.6×10−3 rad
1.6×10−4 rad
1.2×10−3 rad
3.2×10−3 rad
3.2×10−4 rad

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