Computing the wavelength of the light
A beam of monochromatic light is diffracted through a slit of width 0.570 mm. The diffraction pattern forms on a wall 1.60 m beyond the slit. The width of central maximum is around 2.10 mm. Compute the wavelength of the light.
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The weekly salaries of teachers in one state are normally distributed with the mean of $490 and standard deviation of $45. Determine the probability that a randomly selected teacher earns more than $525 a week?
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