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27.1 The Wave Aspect of Light: Interference
Examine a compact disc under white light to observe the colors.
If the spectrum is formed from lines centered at the middle of the disc, what is the spacing of the lines?
Determine the type of spacing.
Knowing the spacing of the rows of pits in the compact disc will allow you to estimate the maximum amount of information that can be stored.
The light reflected from a compact disc and the colors seen in an oil slick are the same.
The dispersion of white light into a rainbow of colors can't be explained by geometric optics.
Light interacts with small objects.
When light interacts with small objects, it's called wave optics, which is a branch of physical optics.
This is the topic of the chapter.
The soap bubbles are exposed to sunlight.
We know that visible light is a type of wave that our eyes respond to.
The visible wavelength range is between 400 and 760 nm.
Light travels in straight lines and acts like a ray when it interacts with large objects.
It displays its wave characteristics when interacting with smaller objects.
The observatory emits a laser beam that travels in a straight line.
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