OPTICAL PROPERTIES OF AB MATERIALS

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PROPERTIES OF AB MATERIALS

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Grace Balahay

United States

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OPTICAL PROPERTIES OF AB MATERIALS


OPTICAL PROPERTIES OF AB MATERIALSVersion en ligne PROPERTIES OF AB MATERIALS par Grace Balahay 1 of AB materials are those properties resulting from physical phenomena occurring when any form of light interacts with the material under consideration. a optical properties b mechanical properties c electrical properties d rheological properties 2 is the general name applied to all sensations arising from the activity of the retina, and is related to visual appearance of food including shape, size, surface and flesh structure, and defects. a color b light c color contrast d color intensity 3 in the context of color and graphics, refers to the attribute of a visible light due to which it is differentiated from or similar to the primary colors: red, green and blue. The term is also used to refer to colors that have no added tint or shade. a hue b chroma c saturation d intensity 4 refers on how pure a hue is in relation to gray a chroma b hue c saturation d intensity 5 is the degree of purity of a hue. a saturation b intensity c luminance or value d shade and tint 6 is the brightness or dullness of a hue. One may lower the intensity by adding white or black a intensity b luminance or value c shade and tint d chroma 7 is a measure of the amount of light reflected from a hue. Those hues with a high content of white have a higher luminance or value. a luminance or value b chroma c intensity d shade and tint 8 are terms that refer to a variation of a hue. a shade and tint b luminance or value c saturation d intensity 9 are very useful in the quality control of foods, and give results normally correlated with visual measurements. a colorimeters b tristimulus colorimeters c munsell colorimeters d spectrophotometers 10 consists of a circular rotating platform where several colored disks are mixed in different proportions to provide a range of shades to match the color of a certain food product. It is widely used in the food industry for quality control of a number of solid products like tomatoes, fruits, and peanut butter. a munsell colorimeter b colorimeter c spectrophotometers d tristimulus colorimeters 11 measure both related scales of Munster, Hunter, or CIE systems, which are numerically related. The quality of output for this type of instrument mainly depends on the correct combination of light source, filter, and photocell to obtain a good reproduction of visual response. a tristimulus colorimeters b spectrophotometers c colorimeters d munsell colomiter 12 is the difference in light between font and its background. a color contrast b color c color intensity d color categories 13 is the numerical value assigned to the difference in light between the foreground and the background. a color contrast ratio b color contrast c intensity d contrast 14 is also referred to as saturation or chroma, refers to the degree of purity of a color. a intensity b color contrast c light transmittance d color 15 highly intense color a bright b neutral or muted 16 low-intensity color a neutral or muted b bright 17 measure intensity of light reflected at three angles of incidence and reflection, and normally give results in the form of indices, obtained by comparing the sample reflectance to that of a highly reflective flat glass, used as a calibration standard. a glossmeter b colorimeter c tristimulus colorimeters d spectrophotometers 18 is a property of transparent and translucent materials, measuring their capacity to transmit light all the way through themselves. a light transmittance b light reflectance c color intensity d color contrast 19 opaque materials obviously have a transmittance of a zero b one c two d three 20 of a material is a measure of its ability to transmit light or radiation a transmittivity b light transmittance c reactance d colorimeters 21 is a measure of material's capacity to absorb light that is incident upon it or passing through it. a light absorptance b light transmittance c capacitance d transmittance 22 In opaque materials, light absorptance is very ______ and directly related to surface color, with black as the highest and white the least a high b low 23 In transparent materials, light absorbance is very ____ and affects the transmitted component only as it passes through. a low b high 24 is the process by which electromagnetic radiation is converted to another type of energy as it passes through a material. a absorption b light absorptance c absorptance d absorptivity 25 of a material is the amount of absorption that takes place per unit of distance light travels within it. a absorptivity b absorptance c absorptivity d light absorptance 26 is measured as the ratio of the total amount of light or electromagnetic radiation that is absorbed compared to the total amount originally incident upon it. As such, it is a dimensionless fractional value between 0 and 1. Whilst a vacuum is the closest, we can ever come to a material with an absorptance of 0, no real material other than perhaps a cosmic black hole has an absorptance of 1. a absorptance b absorptivity c absorption 27 is a measure of the ability of a surface to reflect light or other electromagnetic radiation. It is equal to the ratio of the reflected flux to the incident flux. It can be also measured as the ratio of the total amount of radiation reflected by a surface to the total amount of radiation incident on the surface a light reflectance b translucency c transmittance d light absorptance 28 can be the measurement of the reflection of a thin sample against both a white and black background. From these measurements, the value of reflection from an opaque layer is calculated as a ratio between absorption and scattering to measure scattered light. Additional information on the visual appearance of turbid products such as orange juice can be obtained a translucency b Light reflectance c absorptance d absorptivity 29 The visible portion of the electromagnetic spectrum is that part which lies approximately in the wavelength range of a 4 to 8 ×10-7 m b 4 to 9 ×10-7 m. c 5 to 8 ×10-7 m. d 4 to 8 ×10-8 m. 30 Electromagnetic energy in the _____ range is recognized as red a 622-780 nm b 622-788 nm c 621-780 nm d 621-789 nm 31 electromagnetic energy in the range of _____ is green a 492-577 nm b 492-477 nm c 592-577 nm d 492-588 nm 32 of a product is a property of the smoothness of its surface. When this characteristic is desired, manufacturers try to improve it, as in the case of fruits covered with wax to make them more visually appealing. a glossiness b translucency c loss d glossmeters

OPTICAL PROPERTIES OF AB MATERIALS

Test

À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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OPTICAL PROPERTIES OF AB MATERIALSVersion en ligne

par Grace Balahay

of AB materials are those properties resulting from physical phenomena occurring when any form of light interacts with the material under consideration.

is the general name applied to all sensations arising from the activity of the retina, and is related to visual appearance of food including shape, size, surface and flesh structure, and defects.

in the context of color and graphics, refers to the attribute of a visible light due to which it is differentiated from or similar to the primary colors: red, green and blue. The term is also used to refer to colors that have no added tint or shade.

refers on how pure a hue is in relation to gray

is the degree of purity of a hue.

is the brightness or dullness of a hue. One may lower the intensity by adding white or black

is a measure of the amount of light reflected from a hue. Those hues with a high content of white have a higher luminance or value.

are terms that refer to a variation of a hue.

are very useful in the quality control of foods, and give results normally correlated with visual measurements.

measure both related scales of Munster, Hunter, or CIE systems, which are numerically related. The quality of output for this type of instrument mainly depends on the correct combination of light source, filter, and photocell to obtain a good reproduction of visual response.

is the difference in light between font and its background.

is the numerical value assigned to the difference in light between the foreground and the background.

is also referred to as saturation or chroma, refers to the degree of purity of a color.

highly intense color

low-intensity color

measure intensity of light reflected at three angles of incidence and reflection, and normally give results in the form of indices, obtained by comparing the sample reflectance to that of a highly reflective flat glass, used as a calibration standard.

is a property of transparent and translucent materials, measuring their capacity to transmit light all the way through themselves.

opaque materials obviously have a transmittance of

of a material is a measure of its ability to transmit light or radiation

is a measure of material's capacity to absorb light that is incident upon it or passing through it.

In opaque materials, light absorptance is very ______ and directly related to surface color, with black as the highest and white the least

In transparent materials, light absorbance is very ____ and affects the transmitted component only as it passes through.

is the process by which electromagnetic radiation is converted to another type of energy as it passes through a material.

of a material is the amount of absorption that takes place per unit of distance light travels within it.

The visible portion of the electromagnetic spectrum is that part which lies approximately in the wavelength range of

Electromagnetic energy in the _____ range is recognized as red

electromagnetic energy in the range of _____ is green

of a product is a property of the smoothness of its surface. When this characteristic is desired, manufacturers try to improve it, as in the case of fruits covered with wax to make them more visually appealing.