Overview
Students should be able to list some light sources they come across in everyday life. Determine the angle of reflection for a given angle of incidence. Draw ray diagrams to show the formation of images by plane and curved mirrors; Explain some practical applications of plane and curved mirrors. Explain how the direction of light changes as it travels from one medium into the other. Measure angles of incidence and refraction and: hence deduce a value for the refractive index of a given materal. Explain the meaning of critical angle and total internal reflection stating the conditions under which they occur. Establish the relationship between critical angle and refractive index, and apply it to the solution of simple problems. Trace light lays through a trianguiar prisrr, and obtain graphically the value of the an;is: of minimum deviation. Obtain the spectrum of white light. Describe the spectra if scler enerov received by earth. Obtain irnages due to light rays through converging and diverging lenses using: ray tracks ray tracing method. Use the lens formular to solve nurnencai problems on lenses.
What you'll learn
- Sources of light.
- Light and matter.
- Transmission of light.
- Reflection of light at: Plane mirror surracss Curved mirrors
- Formation of images by Plane mirrors Curved mirrors
- Laws of reflection.
- Parabolic mirror as application of reflection of light on curved surfaces.
- Refraction of iight through R.ectanguiar glass block. Triangular prism.
- Laws of refraction.
- Critical angle and total internal reflection.
- Angle of deviation.
- Dispersion of white light.
- Sun's energy and the radiation to the earth.
- Converging lenses. Diverging lenses. Refraction of light through.