PhysicsHard84×since 2003Q8404A microwave of wavelength 2.0 cm2.0 \mathrm{~cm}2.0 cm falls normally on a slit of width 4.0 cm4.0 \mathrm{~cm}4.0 cm. The angular spread of the central maxima of the diffraction pattern obtained on a screen 1.5 m1.5 \mathrm{~m}1.5 m away from the slit, will be :A60∘60^{\circ}60∘B45∘45^{\circ}45∘C15∘15^{\circ}15∘D30∘30^{\circ}30∘Check answerSkip