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Sound Intensity

Sound Intensity

A short section on the intensity of sound with links through to details on decibels and other related areas.

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http://hyperphysics.phy-astr.gsu.edu/hbase/sound/intens.html#c1
Hyperphysics - Intensity of Radiation

Hyperphysics - Intensity of Radiation

Page talking about intensity of radiation in roentgens and use with X -ray machines.

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http://hyperphysics.phy-astr.gsu.edu/hbase/nuclear/radrisk.html#c4
High Intensity Lasers - Vision Paper

High Intensity Lasers - Vision Paper

Introduction to the inovations occurring in the field of lasers.

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http://policy.iop.org/v_production//
Magnitude

Magnitude

Magnitude is a historical unit of stellar brightness and is defined such that a change of 5 magnitudes represents a factor of 100 in intensity.

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http://hyperphysics.phy-astr.gsu.edu/hbase/astro/para.html#c5
Decibels

Decibels

Description of how sound intensity can be measured in decibels.

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http://hyperphysics.phy-astr.gsu.edu/hbase/sound/db.html#c1
Photo Effect

Photo Effect

The site is an interactive page to study the photoelectric effect on different materials (sodium, cesium and silver) by changing the wavelength and the intensity of the light.

Rating: Rated: 4/5 by physics.org users

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http://lectureonline.cl.msu.edu/~mmp//kap28/PhotoEffect/photo.htm
Diffraction of light

Diffraction of light

Online tutorials on diffraction in which you can vary wavelength and aperture width, and see the results as wave fronts, and as an intensity graph. Explanations include the relevant equations.

Rating: Rated: 1/5 by physics.org users

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http://micro.magnet.fsu.edu/primer/lightandcolor/diffractionhome.html
Brehmsstrahlung Radiation

Brehmsstrahlung Radiation

Detailed description of Bremsstrahlung (?braking radiation?), includes a graph illustrating intensity/wavelength relationship. Part of a larger site which includes many definitions and links.

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http://hyperphysics.phy-astr.gsu.edu/hbase/quantum/xrayc.html#c1
Bragg's Law

Bragg's Law

The condition for maximum intensity contained in Bragg's law allows us to calculate details about a crystal structure, or if the crystal structure is known, to determine the wavelength of the x-rays ...

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http://hyperphysics.phy-astr.gsu.edu/hbase/quantum/bragg.html#c1
Inverse Square Law

Inverse Square Law

Any point source which spreads its influence equally in all directions without a limit to its range will obey the inverse square law. This comes from strictly geometrical considerations. The ...

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http://hyperphysics.phy-astr.gsu.edu/hbase/forces/isq.html#isq

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