Task 00057.
A plane monochromatic wave normally falls on a round hole. At a distance of 8 m from it is a screen where a diffraction pattern is observed. Determine the diameter of the round hole if three Fresnel zones were placed in the hole. The wavelength is 600 nm. How long should the observation screen be moved so that six Fresnel zones fit in the hole?
Detailed solution with a brief record of the conditions, formulas and laws used in the decision, the conclusion of the calculation formula and the answer.
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