It is shown that the sizes of the angles of incidence and refraction are related to the speed of the light through the medium. Consider a conducting wire loop a closed circuit connected to. The bending of a light ray as it passes from air to water is determined by snells law. In 1831, michael faraday showed that a changing magnetic field can induce an emf in a circuit. This will be verified in the experiment by measuring the light intensity using a light sensor. In this note we propose an alternative approach to the experimental study of hookes law that takes into account the variation of the elastic constant as a function of the initial length of the spring.
The physics classroom grants teachers and other users the right to print this pdf document and to download this pdf document for private use. With three of the four variables known, substitution into snells law followed by algebraic manipulation will lead to the answer. Accumulator or battery eliminator, ammeter, voltmeter, rheostat, coil, connecting wires and key if necessary. Snells law was used to calculate the angle of refraction. To use snells law to determine the index of refraction n of a piece of glass and to use it to find the speed of light in that glass. The indices of refraction n i and n r are given and the angle of incidence can be measured. The validity of amontons law for ideal gases is demonstrated using normal air. The polarization of light and the malus law using smartphones arxiv. This law was discovered in 1621 by the dutch astronomer and mathematician willebrord snell also. In this experiment you will verify ohms law in several different circuits using a current.
Evaluation of experimental errors in boyles experiment scielo. The pdf version of the teacher toolkit on the topic of refraction and snells law is displayed below. The experiment consists of a single thin bundle of light rays exiting a light box. In each of these two example problems, the angle of refraction is the variable to be determined. A popular experiment in basic thermodynamics, both at a highschool and at university level, is the determination of the specific heat of solids and liquids using a. Students will also be introduced to the resistor color code and. Laser level, protractor, plate glass, plain paper, pencil, data sheet. Analysis and development of experimental method of charles law. The primary purpose of the lab is to study hookes law and simple harmonic motion by studying the behavior of a mass on a spring. This ray will be incident upon a d shaped dielectric so that we may deduce whether the laws of re. Malus law, intensity, electric field and crossed polarizers. Snells law, in optics, a relationship between the path taken by a ray of light in crossing the boundary or surface of separation between two contacting substances and the refractive index of each. Snells law and the index of refraction introduction.
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