2] By single slit diffraction formula, lambda/d = y/D
633e-9/d = 4.75e-3/1.5
d = 633e-9/[4.75e-3/1.5] = 0.0002 m = 0.2 mm
option d is correct.
2. A helium-neon laser (2 633 nm) illuminates a single slit, and a diffraction pattern is...
A helium-neon laser (λ = 633 nm) illuminates a single slit and is observed on a screen 1.60 m behind the slit. The distance between the first and second minima in the diffraction pattern is 4.15 mm . What is the width (in mm) of the slit?
A helium-neon laser (λ = 633 nm) illuminates a single slit and is observed on a screen 1.30 m behind the slit. The distance between the first and second minima in the diffraction pattern is 3.95 mm .What is the width (in mm) of the slit?
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A single slit diffraction experiment performed with an argon laser of wavelength 454.6 nm produces a pattern on a screen with dark fringes (minima) separated by 10 mm. If we switch to a helium laser of wavelength 632.8 nm, without changing anything else in the setup, what will be the new separation between dark fringes? Select one: a. 13.9 mm b. 7.2 mm c. 15.2 mm d. 17.3 mm e. 6.1 mm
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Red light of wavelength 633 nm from a helium-neon laser passes through a slit 0.340 mm wide. The diffraction pattern is observed on a screen 2.95 m away. Define the width of a bright fringe as the distance between the minima on either side. A) What is the width of the central bright fringe? in m B) What is the width of the first bright fringe on either side of the central one? in m