Electromagnetic Waves and Properties of Light PDF

Chapter 4 Electromagnetic waves and properties of light Prof. Dr. E. F. Abo Zeid 12/5/2024 1  Content of the Course Chapter 1: Units, Statics Equilibrium and Torque (2 weeks) Chapter 2: Fluid Statics, and Fluid Dynamics (2 weeks)...

Chapter 4 Electromagnetic waves and properties of light Prof. Dr. E. F. Abo Zeid 12/5/2024 1  Content of the Course Chapter 1: Units, Statics Equilibrium and Torque (2 weeks) Chapter 2: Fluid Statics, and Fluid Dynamics (2 weeks) Chapter 3: Heat and Thermodynamic (2 weeks) Chapter 4: Electromagnetic waves and properties of light (2 weeks) Chapter 5: Optics and physics of the eye (2 weeks) Chapter 6: Electricity ( one week) Chapter 7: Materials properties (2 weeks) Prof. Dr. E. F. Abo Zeid 12/5/2024 2  Disturb the surface of water and you create water waves. Disturb the molecules of air in the room and you create a sound wave. Disturbing the electromagnetic fields filling space causes electromagnetic waves (light!). Prof. Dr. E. F. Abo Zeid 12/5/2024 3  Properties of EM Waves All matter contains charged particles that are always moving; therefore, all objects emit EM waves. The wavelengths become shorter as the temperature of the material increases. EM waves carry radiant energy. Light is a transverse wave of varying electric and magnetic fields. This pattern of fields moves through space, each location experiencing oscillating fields.  What is the speed of EM waves? All EM waves travel Material Speed 300,000 km/sec in space. (km/s) (speed of light-nature’s limit!) Vacuum 300,000 EM waves usually travel Air