It is shown that the sizes of the angles of incidence and refraction are related to the speed of the light through the medium. In 1831, michael faraday showed that a changing magnetic field can induce an emf in a circuit. Students will also be introduced to the resistor color code and. The objective of this lab is to determine the resistance of several resistors by applying ohms law. The indices of refraction n i and n r are given and the angle of incidence can be measured. 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.
Laser level, protractor, plate glass, plain paper, pencil, data sheet. Snells law was used to calculate the angle of refraction. Ohms law deals with the relationship between voltage and current in an ideal conductor. The experiment consists of a single thin bundle of light rays exiting a light box. 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 validity of amontons law for ideal gases is demonstrated using normal air. 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. This will be verified in the experiment by measuring the light intensity using a light sensor. Analysis and development of experimental method of charles law. With three of the four variables known, substitution into snells law followed by algebraic manipulation will lead to the answer.
The physics classroom grants teachers and other users the right to print this pdf document and to download this pdf document for private use. This law was discovered in 1621 by the dutch astronomer and mathematician willebrord snell also. Malus law, intensity, electric field and crossed polarizers. This ray will be incident upon a d shaped dielectric so that we may deduce whether the laws of re. Evaluation of experimental errors in boyles experiment scielo. The bending of a light ray as it passes from air to water is determined by snells law. A charles law experiment for beginning students journal of. In this experiment you will verify ohms law in several different circuits using a current. Snells law and the index of refraction introduction. To demonstrate this, a volume of enclosed air located in a hollow metallic sphere. Consider a conducting wire loop a closed circuit connected to. The pdf version of the teacher toolkit on the topic of refraction and snells law is displayed below. The polarization of light and the malus law using smartphones arxiv.