JEE Main 2024 Physics question
A parallel beam of monochromatic light of wavelength 600 nm passes through single slit of 0.4 mm width. Angular divergence corresponding to second order minima would be × 10⁻³ rad.
Answer: 6
Solution
sin θ = 2λ/a = 3 × 10⁻³ rad; the angular divergence (from −θ to +θ) is 2θ = 6 × 10⁻³ rad.