7. measure the absorption of light (UV-VIS Spectrophotometer) Figure 7 meter Spectrophotometer UV-VIS. Spectrophotometer A tool that measures the absorbance of light wavelength range 190-800 nm UV-VIS Spectrophotometer. Has been used extensively in the laboratory for determination of inorganic substances such example. Nitrite, ammonia, etc. by measuring the absorbance of a compound containing paint compared to standard solutions 5.1 Nature of Light Light is an electromagnetic wave. (Electromagnetic wave) light speed in vacuum is equal to a multiple of the wavelength (nm) and frequency (frequency), but the travel speed to change when traveling through other intermediaries, with travel speeds equal to 2.9979 x 10-16 cm. / s / n (n = refractive index of the medium, refractive index) optical type may have different wavelengths and moving at different intensities of light commonly measured in candlepower (candle power) or lumen (lumen). Light output varies with the intensity (intensity) of light, so the measurement of light intensity is a measure of the amount of indirect light wavelengths commonly represented by the Greek letter is λ (lambda, lambda) Each light wavelength range is defined there. Name the different requirements of the Joint Committee on Nomenclature in Applied Spectroscopy follows: (Chuchat and Prem's, 2525) , visible light (visible light) white light generated by a combination of light and color primary. seven colors: violet, indigo, blue, green, yellow, orange and red wavelengths from 400-700 nm, when white light hits an object, then the object is made visible, show that objects absorb more light but a reflex. the visible light out. But if the object that absorbs all the colors of light to see objects made out of black ultra violet light (ultraviolet light) with a wavelength of 210-380 nm is the light that has the ability to make atom's electrons occurs. transmission (electronic transmission) on the body, prolonged exposure to potentially dangerous example. Sunburn The conjunctiva is destroyed and can cause cancer of the skin because light ultra violet make beauty Michelle Bass (thymine base) in the nucleus of cells gather infrared light (infrared light) is light, invisible. The Naked Eye You can make a molecule of objects so severe vibrations heat up because most objects absorb light in the wavelength range 3000-100000 nm well, so I used the infrared radiation to make various objects. Dry because it is effective in drying than conventional heat waves Figure 8 5.2. Rules of absorbance 5.2.1. Rules of Lambert's (1760) noted that the light absorbed is proportional to the thickness of the medium light.
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