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Interference describes different waves superposing to form a resultant wave of greater, lower, or the same amplitude. Normally, it involves interaction of waves that are correlated (coherent) with each other, either because they come from the same source, or because they have the same or nearly the same frequency. Interference effects can be observed with all types of waves, e.g., light, radio, acoustic, surface, or matter waves.

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When dealing with double slit interference or interference of waves from numerous slits, the equation nλ=dsin θ . However I do not understand why for calculating the angle for maxima and minima it is … wave from a wave front is a source of a secondary wavelet. Therefore surely, there is interference of infinite waves from each slit. Therefore, surely it is unfair to assume that if one wave …
asked Apr 13 '17 by Nav Hari