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Reading Guide—Chapter 6
Reading Guide—Chapter 6

... Read section 27.3. List 5 types of electromagnetic waves. Circle the ones on your list you use on a regular basis. ...
Winter 2016 W.Wang Homework 2: Electromagnetic Wave 1. A
Winter 2016 W.Wang Homework 2: Electromagnetic Wave 1. A

... Homework 2: Electromagnetic Wave 1. A converging lens 3.0 cm in diameter has a focal length f of 20cm. (a) what angular separation must two distant point objects have to satisfy Rayleigh’s criterion? Assume  = 632nm. (b) what is the smallest spot size limited by diffraction if incident beam is Gaus ...
L34 - University of Iowa Physics
L34 - University of Iowa Physics

... • Thus far we have been dealing only with what is called geometrical optics • In geometrical optics we deal only with the behavior of light rays  it either travels in a straight line or is reflected by a mirror, or bent (refracted) when it travels from one medium into another. • However, light is a ...
L33
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... • Thus far we have been dealing only with what is called geometrical optics • In geometrical optics we deal only with the behavior of light rays  it either travels in a straight line or is reflected by a mirror, or bent (refracted) when it travels from one medium into another. • However, light is a ...
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Light Practice Test

... Give the name of a type of electromagnetic radiation with a wavelength that is too long for humans to see. ...
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... The calculated velocity of these waves turned out to match the speed of light to a very close precision. It was later demonstrated that these waves were, in fact, light waves. ...
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Optics



Optics is the branch of physics which involves the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it. Optics usually describes the behaviour of visible, ultraviolet, and infrared light. Because light is an electromagnetic wave, other forms of electromagnetic radiation such as X-rays, microwaves, and radio waves exhibit similar properties.Most optical phenomena can be accounted for using the classical electromagnetic description of light. Complete electromagnetic descriptions of light are, however, often difficult to apply in practice. Practical optics is usually done using simplified models. The most common of these, geometric optics, treats light as a collection of rays that travel in straight lines and bend when they pass through or reflect from surfaces. Physical optics is a more comprehensive model of light, which includes wave effects such as diffraction and interference that cannot be accounted for in geometric optics. Historically, the ray-based model of light was developed first, followed by the wave model of light. Progress in electromagnetic theory in the 19th century led to the discovery that light waves were in fact electromagnetic radiation.Some phenomena depend on the fact that light has both wave-like and particle-like properties. Explanation of these effects requires quantum mechanics. When considering light's particle-like properties, the light is modelled as a collection of particles called ""photons"". Quantum optics deals with the application of quantum mechanics to optical systems.Optical science is relevant to and studied in many related disciplines including astronomy, various engineering fields, photography, and medicine (particularly ophthalmology and optometry). Practical applications of optics are found in a variety of technologies and everyday objects, including mirrors, lenses, telescopes, microscopes, lasers, and fibre optics.
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