Reflection

When two or more waves simultaneously pass through the same medium, each wave acts on every particle of the medium, as if the other waves…

Refraction of a plane wavefront at a plane surface Let XY be a plane refracting surface separating two media 1 and 2 of refractive indices…

Reflection of a plane wave front at a plane surface Let XY be a plane reflecting surface and AB be a plane wavefront incident on…

One of the spectacular atmospheric phenomena is the formation of rainbow during rainy days. The rainbow is also an example of dispersion of sunlight by…

The initial adjustment of the spectrometer consists of adjustments to the telescope and the collimator. First, adjust the eyepiece of the telescope so that the…

Newton’s Experiment on Dispersion: Sir Isaac Newton gave an explanation for dispersion. He placed a similar prism in an inverted position. The emergent beam from the…

The prism table is used for mounting the prism, grating etc. It consists of two circular metal discs provided with three levelling screws. It can…

Dispersion of light is the splitting of white light into its constituent colours. This band of colours of light is called its spectrum. In the…

Refraction of light through a prism: The figure shows the cross-section of a triangular prism ABC, placed in air. Let ‘A’ be the refracting angle…

A prism is a transparent medium bounded by the three plane faces. Out of the three faces, one is grounded and the other two are…