A highly collimated (parallel) beam of electrons is shot through a single slit of width 18.6μm. The electrons are moving with a speed of 6.24 km/s. When they hit the screen, located at distance 1.99m away, the distribution of hitting positions makes a pattern with a central peak and minima on either side. What is the width of the central peak (equivalently, distance between the minima on either side)?

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