In a Frounhofer diffraction experiment, a single slit of width 0.5 mm is illuminated by a monochromatic light of wavelength 600 nm . The diffraction pattern is observed on a screen at a distance of 50

Question

In a Frounhofer diffraction experiment, a single slit of width 0.5 mm is illuminated by a monochromatic light of wavelength 600 nm . The diffraction pattern is observed on a screen at a distance of 50 cm from the slit. What will be the linear separation of the first order minima?

TestHub · Accepted Answer

Hint: d = 0.5 mm . λ = 600 nm . Width of central maxima = d 2 λ D ​ D = 50 cm d 2 λ D ​ = 0.5 × 1 0 − 3 2 × 600 × 50 × 1 0 − 2 × 1 0 − 9 ​ = 1.2 mm

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