Definitions

DEFINE:

1. Longitudinal wave


2. Transverse wave


3. Photon


4. Dualistic nature of light


5. Diffraction


6. Dispersion







History of the Theory of Light


7. WAVE THEORY

WHAT is the wave theory, WHO were the proponents of it, and WHY was it acceptable/not acceptable?

8. PARTICLE

WHAT is the particle theory, WHO were the proponents of it, and WHY was it acceptable/not acceptable?





Electromagnetic Spectrum


9. What are the categories of the electromagnetic spectrum, from shortest wavelength to longest wavelength?


10. What are the potential effects of UV radiation on the eye? What are the potential effects of IR radiation on the eye?


11. Name the principle colors in the visible spectrum, from highest energy to lowest energy.


12. What categories of the electromagnetic spectrum act more like a packet of energy than like a wave? What categories act more like a wave than like a packet of energy?






Properties of Waves


13. Define wavelength, frequency, and speed of light in a vacuum. Tell me what the relationship between these attributes is.
    [Show 10 to the 8th power as 10^8 -- this is a notation that we will use occasionally throughout this course.]


14. What has the highest energy, x-rays or TV waves? Which of these two elements of the electromagnetic spectrum has the longest wavelength? Which of these two elements of the electromagnetic spectrum has the highest frequency?






Properties of Photons


15. Define convergence and divergence in your own words.


16. Define ray, pencil and beam in your own words.