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

In an interference pattern, maxima occur at points where the path difference between two waves is an integer multiple of the wavelength (nλ, where n is an integer). Conversely, minima occur where the path difference is an odd multiple of half the wavelength ((n + 0.5)λ). Additionally, constructive interference leads to bright fringes (maxima), while destructive interference results in dark fringes (minima). These conditions apply in contexts such as double-slit experiments and thin-film interference.