SPECIFIC OBJECTIVES. Distinguish between converging and diverging lenses. Define the principal axis, principal focus, focal length and center of curvature. Describe the characteristics of images formed by convex and concave lenses. Determine the focal length of convex lense. Describe the… Continue Reading…

Is a natural optical instrument whose ability to form images depends on the crystalline lens. 1). Sclerotic. Is a hard shell tough opaque coat of the eye. Is the white part of the eye. It forms cornea which is a… Continue Reading…

SPECIFIC OBJECTIVES. Define photoelectric effect, work function, electron volts, ratioed frequency. Perform and describe simple experiment to show photoelectric effect. Explain the factors affecting photoelectric effect. Explain photoelectric effect using Einstein equation. Apply equation E = hf to calculate energy… Continue Reading…

Is a process by which an e.m.f is induced in a coil by changing current or magnetic field in another current near it. The coil connected to the source is called a primary coil and the coil where e.m.f is… Continue Reading…

Specific objectives. State the source of mains electricity. Describe the transmission of electric power from generating station. Explain the domestic wiring system. Define the kilowatt- hour (KwH). Determine the electrical energy consumption and lost. Solve numerical problems involving mains electricity.… Continue Reading…

Specific objectives. State the difference between conductors, insulators and semi- conductors. Define intrinsic and extrinsic semi- conductors. Explain doping in semi- conductors. Explain the working of a P.N junction diode. Sketch the current voltage characteristics for a diode. Explain the… Continue Reading…

Are waves that do not require a material medium for their transmission. They are formed by magnetic and electric disturbances which are at right angle to each other. They are arranged in either order of increasing wavelength or decreasing frequency.… Continue Reading…

SPECIFIC OBJECTIVES Perform and describe simple experiments to illustrate electromagnetic induction. State the factors affecting the magnitude and the direction of induced current. State the laws of electromagnetic induction. Describe simple experiments to illustrate mutual induction. Explain the working of… Continue Reading…

Specific objectives. Describe production of cathode rays. State the properties of cathode rays. Explain the functioning of cathode ray oscilloscope and of a TV tube. Explain the uses of cathode ray oscilloscope. Solve problems involving cathode rays oscilloscope. Production of… Continue Reading…