Physics

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 telescope is an astronomical type. It consists of an eyepiece provided with cross wires at one end of the tube and an objective lens…

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…

The collimator is an arrangement to produce a parallel beam of light. It consists of a long cylindrical tube with a convex lens at the…

The spectrometer is an optical instrument used to study the spectra of different sources of light and to measure the refractive indices of materials (Fig).…

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…