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Narrated Lesson
showmethephysics.com
Resonance Review
UC Irvine
School blocks YouTube? Download the file below.
Hoot_Tubes.mov
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Bubbles
1st, 2nd, 3rd Harmonic
(B. Barrett)
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Fill In The Blank Notes
IV.
Light (electromagnetic waves)
A. Speed
1.
3 x 108 m/s = c (in vacuum)
(fastest speed
in universe)
In air v ≈ 3 x 108 m/s
Did you know that
light can travel
about 7.5 times
around the world
in 1 second!
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v = fλ
c
= fλ
3 x
108 m/s = fλ
Divide both sides by
λ
f = c/λ
Frequency, Wavelength
Relationship?
Inverse
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Ex) What is the
wavelength of light with a
frequency of 7.69 x 1014 Hz in a vacuum?
c = fλ
3 x 108 m/s = 7.69
x 1014 Hz
λ
λ = 4 x
10-7 m
2. Speed of light depends on
the medium
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Reflection
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ŠTony Mangiacapre.,
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