Which phenomenon causes the formation of rings or fringes of alternating dark and bright bands when monochromatic light passes through a thin wedge-shaped film?

💡 Solution & Explanation

Interference is the phenomenon where light waves reflected from the top and bottom surfaces of a thin film superimpose constructively or destructively to produce alternating bright and dark fringes. Options such as polarization involve the orientation of transverse wave vibrations, whereas dispersion splits white light into its component colors.