Find the position of the first minimum with respect to central maxima for a single slit of width 0.04 mm,

Find the position of the first minimum with respect to central maxima for a single slit of width 0.04 mm, on a screen 2 meters distant, when light from a He-Ne laser λ = 632.8 nm is shone on the slit.

(A) 3.16 cm

(B) 2.16 cm

(D) 1.58 cm

Find the position of the first minimum with respect to central maxima for a single slit of width 0.04 mm,

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