JEE Main 2024 Physics question
In a single slit experiment, a parallel beam of green light of wavelength 550 nm passes through a slit of width 0.20 mm. The transmitted light is collected on a screen 100 cm away. The distance of first order minima from the central maximum will be x × 10 m. The value of x is:
Answer: 275
Solution
y = λD/a = 550 × 10⁻⁹ × 1/(0.2 × 10⁻³) = 2.75 × 10⁻³ m = 275 × 10⁻⁵ m.