34. Wave Optics

Diffraction

Multiple Choice
Which of the following correctly describes the diffraction of $light$ ?
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Multiple Choice
Which of the following lists the correct sequence of steps that occur when using a diffraction grating to bend light?
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Multiple Choice
Which of the following is an everyday example of a diffraction grating?
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Multiple Choice
Which statement best explains how light bends during $d i f f r a c t i o n$ ?
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Multiple Choice
Which of the following best describes diffraction?
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Multiple Choice
Which of the following best describes the phenomenon of $d i f f r a c t i o n$ ?
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Multiple Choice
Which of the following diagrams best represents the phenomenon of $d i f f r a c t i o n$ ?
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Multiple Choice
Which of the following best describes what happens as a result of diffraction?
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Multiple Choice
Which principle explains why light spreads out after passing through a narrow slit?
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Multiple Choice
A diffraction grating has $2000$ lines per ${cm}^{−1}$ . What is the distance between adjacent slits (the grating spacing) in meters?
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Multiple Choice
How does diffraction affect the propagation of a wireless signal?
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Textbook Question
How far apart are the dark fringes in Example 34–6 if the glass plates are each 26.3 cm long?
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Multiple Choice
A diffraction grating with $500 lines / mm$ is illuminated by two wavelengths of light: $450 nm$ and $600 nm .$ What is the distance between the $m = 2$ bright fringes of the two colors of light on a screen $1 . 3 m$ away?
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Multiple Choice
A diffraction grating has $500 lines / mm .$ If it is illuminated by a laser at $532 nm,$ how many bright spots will be observed on a screen placed behind the grating?
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Multiple Choice
A particular kind of oil with an index of refraction of $1.46$ has spilled on water. The different thicknesses of the oil slick result in different colors being strongly reflected at different parts of the spill. But near the edges, you identify the thinnest part of the oil layer that strongly reflects green light with a wavelength of 550 nm when you are directly overhead. What is the thickness of the oil at this point? Assume light is incident normal to the oil surface.
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