問題一覧
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from .01 to 30 nanometers
X-RAYS
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from 30-400 nanometers
ULTRAVIOLET RAYS
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from 400-700 nanometers
VISIBLE LIGHT
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from 700-1000 nanometers
INFRARED RAYS
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Xrays example
ROENTGEN RAYS, SHADOW METHOD, INTERNAL
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Ultra Violet examples
BLACK LIGHT USED FOR ERASURE, DOCUMENTS THAT ARE ALTERED, INVISIBLE WRITING, CONTACT WRITING, SEMEN, FIBER AND LATENT PRINTS
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Infrared rays examples
OBLITERATION, INSERTION, CHARRED DOCUMENTS
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Is a radiant electromagnetic energy that can be seen by the naked eye
LIGHT
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Light rays with a wavelength of 400-700 nanometer is referred to as
VISIBLE LIGHT
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Those with shorter pr longer wavelengths are commonly referred as
INVISIBLE RADIATIONS
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Light energy has several effects on an object...
REFLECTED, ABSORBED, TRANSMITTED, CONVERTED
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The final effect a radiant energy may have on an object is to be converted to another wavelength. This Conversion is known as?
LUMINESCENCE
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Is a general term for the emission of light from a cool object.
LUMINESCENCE
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Categories of Luminescence
FLUORESCENCE, PHOSPHORESCENCE, CHEMILUMINESCENCE
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is the ability of an object to convert one wavelength to another as long as the active energy source is irradiating the object
FLUORESCENCE
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stimulated to the substance by the absorption of incident radiation and persisting only as long as the stimulating radiation is continued
FLUORESCENCE
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The object not only converts the wavelength while being irradiated but continuous to reflect the new wavelengthsfor a period of time after the energy source is removed.
PHOSPHORESCENCE
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Process by which the energy absorbed by the substance is released relatively slowly in the form of light
PHOSPHORESCENCE
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Is the generation of light by chemical reaction
CHEMILUMINESCENCE
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Most common form of lumiscence in living organism
CHEMILUMINESCENCE
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When all the wavelengths between 400-700 nanometers are presented to the eye in nearly equal quantity, we get the sensation or perception of colorless or...
WHITE LIGHT
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3 primary colors of light
BLUE, GREEN, RED
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Blue milli-microns
400-500
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Green milli-microns
500-600
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Red milli-microns
600-700
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3 secondary colors of light
CYAN, YELLOW, MAGENTA
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The colors of most ordinary objects are due to the fact that they do not absorb the same amount of light each wavelength
ABSORPTION
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Variation in the density of the atmospheric gases act in such a way that they scatter light of the shorter wavelength at the blue end of the spectrum much more they scatter light of the longer wavelength of the red end of the spectrum
SCATTERING
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The light reflected from the rop surface of such a film undergoes a reversal or phase but the light reflected from the bottom surface does not undergo this type of change
INTERFERENCE
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This happens when molecules of the fluorescent material absorb enrgy at one wavelength and radiate it at another wavelength
FLUORESCENCE
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Color may arise from differences in the refractive or bending power of a transparent medium of light of different wavelength. (ex rainbow)
DISPERSION
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This any color perception has three characteristics, any one which can be varied independently of the othe two.
HUE, SATURATION, BRIGHTNESS
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refers to the color itself
HUE
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When traveling in open space, light travels in straight line. However, when light comes in contact with an object, it may be bended
BENDING OF LIGHT
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Production of Colors
ABSORPTION, SCATTERING, INTERFERENCE, FLUORESCENCE, DISPERSION
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Bending of Light
REFLECTION, REFRACTION, DIFFRACTION
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Kinds of object as to how they behave to light
TRANSPARENT, TRANSLUCENT, OPAQUE
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light bounces off an object when flat surface , smooth, shiny reflect at the same time
REFLECTION
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Types of Reflection
REGULAR, IRREGULAR
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type of reflection; it happens when light hits a flat, smooth and shiny surface
REGULAR REFLECTION
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type of reflection when it occurs when light hits rough or uneven but glossy object
IRREGULAR REFLECTION
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Is the movement of light from one medium into another medium
REFRACTION
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It can cause bending of the ligh at the interfere between media
REFRACTION
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Refers to various phenomenon that occur when a wave encounters an obstacle or a slit.
DIFFRACTION
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Defined as the bending of light around the corners of an obstacles or aperture into the region of geometrical shadow of the obstacle
DIFFRACTION
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Allows sufficient visible light to pass through them that the object on the other side may be clearly seen
TRANSPARENT objects
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Allows light to pass, however diffuse it sufficiently that objects on the other side may not be clearly distinguished
TRANSLUCENT objects
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The objects on the other aide may be recognized but the sharp detail and outline are obscurred
TRANSLUCENT objects
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greatly diffuse the light that recognizing the object on the other side is very difficult if not possible
OPAQUE objects
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Classification of Daylight According to its Intensity
BRIGHT, HAZY, DULL
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Is a radiant electromagnetic energy that can be seen by the naked eye
LIGHT
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Those with shorter or longer wavelengths are commonly referred as?
INVISIBLE RADIATIONS
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is one of a number of known forms od radiant electromagnetic energy which travel in wave motion
LIGHT
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is the distance from the crest to the wave to the next succeeding crest
WAVELENGTH
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is the number of waves passing in a given point in one second
FREQUENCY
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the product of wavelength and frequency is
SPEED OF TRAVEL
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the presence of all colors
WHITE
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absence of all colors
BLACK
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have a wavelength ranges from 1,000 up nanometer
RADIO LIGHT WAVES
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is a form of art . has elements that might not be the first thing that we think about when we take a photograph
PHOTOGRAPHY