Young's double slit experiment, what must be the path differences of two initially in phase waves to produced the second minimum (destructive interference)? A  Half a wavelength. B. A wavelength. C. Three halves of a wavelength. D. Two wavelengths. E. Five halves of a wavelength

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Dispersion of White Light

Snell’s law is a formula that gives a relation between the angle of incidence and angle of refraction and is given as: