A parallel beam of monochromatic light of wavelength λ falls normally onto a single slit of width 6λ.The angle for which the third diffraction minima of light is observed is
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a
300
b
sin-116
c
900
d
sin-123
answer is A.
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Detailed Solution
in single slit diffraction pattern angular position of third minimum i sinθ =3λa, sinθ =3λ6λ=12, θ=300