what is the relationship between distance and intensity?
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The intensity of light is inversely proportional to the square of the distance. This means that as the distance from a light source increases, the intensity of light is equal to a value multiplied by 1/d2,. The proportional symbol, , is used to show how these relate.
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Value is the lightness or darkness of a hue and it is changed by adding black or white to a color. Intensity is the brightness or dullness of hue and is changed by mixing a color with its complement (the color directly across from it on the color wheel).
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Intensity can be found by taking the energy density (energy per unit volume) at a point in space and multiplying it by the velocity at which the energy is moving. The resulting vector has the units of power divided by area (i.e., surface power density).
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The resolving power of an objective lens is measured by its ability to differentiate two lines or points in an object. The greater the resolving power, the smaller the minimum distance between two lines or points that can still be distinguished. The larger the N.A., the higher the resolving power.
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The main difference between Distance and Length is that the Distance is a straight line that connects two points in a measurable space or in an observable physical space and Length is a measured dimension of an object.
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Difference Between Magnitude and Intensity of Earthquake. Magnitude and intensity measure various characteristics of earthquake. ... The magnitude of earthquake is determined from measurements on seismographs, whereas the intensity is determined from effects on people, human structures, and the natural environment.
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The flux of an astronomical source depends on the luminosity of the object and its distance from the Earth, according to the inverse square law: where F = flux measured at distance r, L = luminosity of the source, r= distance to the source.
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Intensity is the power per square meter. Power is energy per second. ... Greater energy in a single photon means higher frequency and shorter wavelength. Intensity means a greater number of photons per second per square meter.
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Provided that the photons have the same wavelength or same wavelength distribution, then intensity is proportional to the rate of photons not to their number. Intensity is a measure of energy per unit time, or power. Number of photons is a measure of energy.
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Some factors that affect intensity are the distance away from the epicenter, the depth of the earthquake, the population density of the area affected by the earthquake, the local geology of the are, the type of building construction in the area, and the duration of the shaking.
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At the 2F point, the object distance equals the image distance and the object height equals the image height. As the object distance approaches one focal length, the image distance and image height approaches infinity. Finally, when the object distance is equal to exactly one focal length, there is no image.
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Relation between Electric Intensity and Potential Gradient The change of electric potential with respect to distance is called potential gradient. It is denoted by dv/dx. hence, the negative of potential gradient is equal with electric field intensity.
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Distance. ... The amount of radiation exposure is not inversely proportional to the distance from the radiation source, but is inversely proportional to the square of the distance [2,4]. This means that double the distance from the radiation source can reduce the radiation exposure not to 1/2 but to 1/4.
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The intensity of radiation at a given distance from a point source is inversely proportional to the square of the distance. What is the relationship between distance and density/IR exposure? The further the tube is from the target, the less the x-ray intensity will be.
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What is the Inverse Square Law Formula? The intensity of the light to an observer from a source is inversely proportional to the square of the distance from the observer to the source. This shows that as the distance from a light source increases, the intensity of light is equal to a value multiplied by 1/d2.
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Electrostatic force and distance are inversely related. The pattern between electrostatic force and distance can be further characterized as an inverse square relationship.
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Lesson Summary Intensity is measured in decibels and is perceived as sound volume. Thus, the volume is proportional to the amplitude of the sound wave. The frequency of a sound wave is perceived as pitch.