What are the conditions of maxima and minima in an interference pattern?

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Dr Rajni Jamwal

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Maxima and minima are plural forms of maximum and minimum. However, in interference and diffraction maxima refers to the zones where the intensity of the light is maximum and minima when the intensity is minimum. When if minimum of a wave superimposes on maximum of the other, it results in a destructive...
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Maxima and minima are plural forms of maximum and minimum. However, in interference and diffraction maxima refers to the zones where the intensity of the light is maximum and minima when the intensity is minimum. When if minimum of a wave superimposes on maximum of the other, it results in a destructive interference and intensity becomes a minimum of interference fringes, while if maxima of a wave superimposes on maxima of another wave or minimum of a wave superimposes on minimum of another wave, intensity becomes maximum. For maxima path difference x = n? For minima path difference x = (2n+1)?/2 For interference pattern, in double slit experiment maxima will be found at a distance y from the central maximum , y = n?D/d D = distance between slit and screen d = separation of the slits. n = 1, 2, 3 … For minima y = (2n+1)?D/2d In diffraction minima is found by equation asin? = n? a = slit width For maxima the formula is a transcendental equation and not included in your syllabus. read less
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An easy approach to Physics

Condition for maxima: Path difference between two waves should even multiple of half of wave length. OR The phase difference between two waves are even multiple of Pai radian Condition for Minima: Path difference between two waves is odd multiple of half of wavelength OR phase difference between...
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Condition for maxima: Path difference between two waves should even multiple of half of wave length. OR The phase difference between two waves are even multiple of Pai radian Condition for Minima: Path difference between two waves is odd multiple of half of wavelength OR phase difference between two waves are odd multiple of Pai radian read less
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