E. Wave Nature of Light
2 Competing Theories: 1. __________________ 2. ____________
Behavior
of Light Supporting _____________________
1. _____________ – light ___________ into the region behind an obstacle
2 Competing Theories: 1. __________________ 2. ____________
1. _____________ – light ___________ into the region behind an obstacle
2. ____________________________ – Young’s Double Slit Late 1800's
If you draw a line from
each slit to the 1st order bright line, you will notice
that one line is longer than another. The ___________
between these two
lines is _______________________
Constructive Interference causes _________ Lines.
Destructive Interference causes ___________Lines.
More wave behaviors of
light
Polarization - ____________________
of a beam of light producing light that vibrates in only one plane
-
proves light
is a ___________________ wave - it has an __________
Doppler Effect for
light
There
is a change in the observed _____________________________(color) of light
as
a very fast source of the light __________________________from an observer.
¨
Observed in
______________moving stars
Memory Trick -
"_______________TO " "_________ AWAY"
Star's colors become _____________
Star's colors become _____________________
Summary - Why do we think
light is a wave?
Diffraction
- _____________________________
Interference - ___________________________
Polarization - _________________________________________
Doppler
Effect -
______________________________
Electromagnetic Radiation - Wavelength and Frequency
Which one has the smallest
wavelength? (hint: most penetrating)
Which one has the smallest
frequency? (hint: how are wavelength and frequency
related?)
Which color has the
greatest wavelength? _________smallest? ____