If we observe the single slit Fraunhofer diffraction with wavelength λ and slit width d, the width of the central maxima is 2θ. On decreasing the slit width for the same
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a
θ increases
b
θ remains unchanged
c
θ decreases
d
θ increases or decreases depending on the intensity of light
answer is A.
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Detailed Solution
2θ=2λd (where d= slit width) As d decreases, θ increases.