Solving a problem in physics section 51 point 69 optics

Solving a problem in physics section 51 point 69 optics

69. The diffraction pattern is observed at a distance of 1 m from the point source of monochromatic light (λ = 0,5 mm). Midway between the light source and the screen is a circular aperture diaphragm. Determine the radius of the hole, where the center of the diffraction pattern on the screen will be the most dark.

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Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)