## UY1: Special Relativity For Undergrads

This section deals with Special Relativity at a level slightly higher than pre-university and is tailored towards first year Physics majors. Content: Principle Of Relativity Einstein’s Postulates of Special Relativity & Inertia Frames Gallilean Coordinate Transformation Back To University Year 1 Notes

## UY1: Standing Electromagnetic Waves

The superposition principle holds for electromagnetic waves just as for electric and magnetic fields. Electromagnetic waves can be reflected off the surface of a conductor or a dielectric. The superposition of an incident wave and a reflected wave forms a standing wave. Suppose a sheet of a perfect conductor (zero resistivity) is placed in the yz-plane and a linearly polarized …

## UY1: Energy & Momentum In Electromagnetic Waves

In a region of empty space where $\vec{E}$ and $\vec{B}$ fields are present, the total energy density $u$ is given by: $$u = \frac{1}{2} \epsilon_{0} E^{2} + \frac{1}{2 \mu_{0}} B^{2}$$ For electromagnetic waves in a vacuum, \begin{aligned} B &= \frac{E}{c} \\ &= \sqrt{\epsilon_{0} \mu_{0}} E \end{aligned} It follows that: $$u = \epsilon_{0} E^{2}$$ In a vacuum, the energy density associated …

## UY1: Electromagnetic Spectrum & Sinusoidal EM Plane Waves

Every accelerated charge radiates electromagnetic energy – electromagnetic waves. Electric and magnetic disturbances radiate away from the source. Electromagnetic waves require no medium. (What’s “waving” in an electromagnetic wave are the time-varying electric and magnetic fields. The wave travels in vacuum with a definite and unchanging speed $c$ – the speed of light. Hertz produced pulses of electromagnetic radiation by generating …

## UY1: Mechanics

This section deals with Mechanics at a level slightly higher than pre-university and is tailored towards first year Physics majors. This is a very simple introduction to Classical Mechanics. Basics Basics For Mechanics Kinematics 1-D Kinematics 2-D Kinematics Newton’s Law Of Motion Newton’s Laws Of Motion (Recap of Forces And Dynamics (JC/High School) ) Friction Resistive Force Uniform Circular Motion & Non-uniform Circular Motion …