Main Effects Explained

Correcting Farsightedness using the Near Point

What is Optical Path Length?

Correcting Nearsightedness using the Far Point

Example: Photoelectric Effect

Example: Computing Optical Path Length

Example: Ray Tracing a Converging Lens

Example: Optical Path Length (with phase shifts)

Example: Two-Lens Imaging with converging lenses

Ray Tracing Virtual Objects with a Converging Lens

When can we use Ampere's Law to find Magnetic Field?

Example: Ray Tracing with a Diverging Lens

Capacitors with Dielectrics

Ray Tracing Virtual Objects with a Diverging Lens - Real Image

Ray Tracing Virtual Objects with a Diverging Lens - Virtual Image

Why do rays pass straight through the center of a lens?

The N-Polarizer Problem

Example: Calculate Parallel-Plate Capacitance

Capacitance of a Spherical Capacitor

Gauss' Law with Negative Charge

Finding the Energy Stored in a Capacitor

Example: Charge Sharing and Equipotential Surfaces

Finding the Capacitance of a Parallel Plate capacitor

Why Balance Electrical Loads in the Home?

Gauss Law Near a Conductor