the wavelength of the incident light?

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Ex5: Monochromatic light is incident on a single slit of width 0.30
mm. On a screen located 2.0 m away, the width of the central
bright fringe is measured and found to be near 7.8 mm. What is
the wavelength of the incident light?
Transcribed Image Text:Ex5: Monochromatic light is incident on a single slit of width 0.30 mm. On a screen located 2.0 m away, the width of the central bright fringe is measured and found to be near 7.8 mm. What is the wavelength of the incident light?
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