Determine what is the wavelength of the laser light

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A laser beam of unknown wavelength is incident on a single slit of width 0.25 mm and forms a Fraunhofer diffraction pattern on a screen 2.0 m away. The width of the central bright fringe is measured to be about 7 mm. What is the wavelength of the laser light?

What might the laser be?

Reference no: EM13337536

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