A ..... tells you which wavelengths of light is absorbed and which wavelengths of light is reflected. A ..... measures the relative intensity of the light absorbed or reflected at a particular wavelength of light.

TOXICOLOGY

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A ____ tells you which wavelengths of light is absorbed and which wavelengths of light is reflected. A ____ measures the relative intensity of the light absorbed or reflected at a particular wavelength of light.

A	spectrometer, spectrophotometer
B	spectrophotometer, spectrometer
C	Either A or B
D	None of the above

Explanation:

Detailed explanation-1: -Spectrophotometry is a method to measure how much a substance absorbs light by measuring the intensity of light as a beam of light passes through sample solution. The basic principle is that each compound absorbs or transmits light over a certain range of wavelength.

Detailed explanation-2: -What is absorbance measured in? Absorbance is measured using a spectrophotometer or microplate reader, which is an instrument that shines light of a specified wavelength through a sample and measures the amount of light that the sample absorbs.

Detailed explanation-3: -Absorbance Wavelengths A UV-visible spectrophotometer uses light over the ultraviolet range (185 – 400 nm) and visible range (400 – 700 nm) of the electromagnetic radiation spectrum. Whereas an IR spectrophotometer uses light over the infrared range (700 – 15000 nm).

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TOXICOLOGY