Question

In Newton's ring, the centre of the ring system is dark because a- phase change of pie takes place after reflection, b- light passes through the glass c - light does not fall on the centre of the system d- the lens touches the glass surface

Answer 1

Newton's rings is a phenomenon in which an interference pattern is created by the reflection of light between two surfaces—a spherical surface and an adjacent touching flat surface. It is named for Isaac Newton, who first studied the effect in 1717. When viewed with monochromatic light, Newton's rings appear as a series of concentric, alternating bright and dark rings centered at the point of contact between the two surfaces. When viewed with white light, it forms a concentric ring pattern of rainbow colors, because the different wavelengths of light interfere at different thicknesses of the air layer between the surfaces.................


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