1.1 Reflection of Light
1.2 Refraction of Light
1.3 Spherical Lenses
1.4 Spherical Mirrors
2.1 Refraction of Light.
2.2 Scattering of Light.
2.3 The Human Eye.
3.1 Electric Current and Electric Potential.
3.2 Heating Effect of Electric Current.
3.3 Ohm's Law and Resistance
3.4 Resistors in Series and Parallel
4.1 Domestic Electric Circuits
4.2 Electric Generator
4.3 Electric Motor
4.4 Magnetic Field and Field Lines
4.5 Magnetic Field Due to a Current Carrying Conductor
5.1 Conventional Sources of Energy
5.2 Non-conventional Sources of Energy
5.3 Sources of Energy and Environment