PhysicsMedium84×since 2003Q8403A single slit of width aaa is illuminated by a monochromatic light of wavelength 600 nm600 \mathrm{~nm}600 nm. The value of ' aaa ' for which first minimum appears at θ=30∘\theta=30^{\circ}θ=30∘ on the screen will be :A3μm{3} \mu \mathrm{m}3μmB0.6μm0.6 \mu \mathrm{m}0.6μmC1.8μm1.8 \mu \mathrm{m}1.8μmD1.2μm1.2 \mu \mathrm{m}1.2μmCheck answerSkip