1. Handouts are available in alternative accessible formats upon request.
Important Notice
Qualified students with disabilities needing appropriate academic adjustments should contact me as soon as possible to ensure your needs are met in a timely manner.
Handouts are available in alternative accessible formats upon request.

2. HW #1
Due:
Ch. 1: P11, P12, P13, P14, PM2
Ch.2: P7, P12

3. System of Units and Notations
Metric System

4. Fundamental Properties of Light
Chapter 1
Fundamental Properties of Light
Reading Assignment: All Chapter 1

5. What is Light?
“We all know what light is but it is not easy to tell what it is”!
Samuel Johnson
“About light I am in the dark”
Benjamin Franklin
In this course, we want to answer the above question by understanding what light does.

6. Why do we see things?

8. Properties of Light How does it travel? How fast does it travel?
What is it that travels?
Is it wave, particle, or just rays?

9. Light travels in a straight line

10. Light travels in a straight line
The intensity varies with the square of the distance

11. (example: comets tail is always facing away from the sun)
Light has momentum
(example: comets tail is always facing away from the sun)

12. Reflection

13. Refraction

14. Diffraction
silver lining

15. Light is Wave What is a wave?! distance Harmonic wave:
wavelength
Frequency
(Hertz)
Velocity (300,000,000 meters/sec)
Wavelength (meters)

16. amplitude z
frequency or
wavelength z
phase z

17. Wavefront

18. Light has color!!
Color of the light depends on its wavelength …..

19. *Ripple Tank Waves
* Longitudinal and Transverse Waves -2
*Waves, ElectroMagnetic
*Oscillating Charge Field

20. Electromagnetic Spectrum

21. Visible Light Spectrum

22. Light sources (thermal)
*Color Temperature (Vase)
*Black Body

23. Fluorescent Lamp *Phosphorescence: E&M Radiation (Joblonski Diagram)

24. Laser (Ruby) End of Chapter 1 *E&M Radiation (Absorption and Emission)
* Ruby Laser
End of Chapter 1