COMPLETE EXPERIMENTS ON OPTICS

Objective: Determine the focal length of a lens using the Bessel method On an optical bench it is possible to set up a light source, a lens, a screen and an object to be imaged in such a way that a well focussed image appears on the screen ... more

Objective: Generating interference between two beams using a Fresnel biprism. Refraction of a divergent light beam by means of a biprism separates the beam into two parts which, since they are coherent, will interfere with one another. The ... more

Objective: Verify Malus’ law for linearly polarised light. Malus’ law describes how intensity I of polarised light with an initial intensity I0, having passed through an analyser filter, depends on the angle of rotation of the ... more

Objective: Investigate the rotation of the plane of polarisation by sugar solutions Sugar solutions are optically active, in other words they rotate the plane of polarisation of any linearly polarised light that is passed through them. The ... more

Objective: Demonstration of Pockels effect in a conoscopic beam path The Pockels effect is an electro-optical effect in which an electric field within a suitable material splits a light beam into two beams polarised perpendicular to one ... more

Objective: Verify that intensity of radiation is proportional to the fourth power of the temperature, T4 The way that intensity of radiation from a black body depends on temperature is described by the Stefan-Boltzmann law. Similar ... more

Objective: Determine the velocity of light from the transit time of short light pulses The fact that light is propagated at a finite speed can be demonstrated by a simple transit time measurement. This is achieved by using very short light ... more