Introduction to Spectrophotometry

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What is the unit of measuring wavelength in spectrophotometry?

Millimeter

Micrometer

Centimeter

Nanometer (correct)

What is the basic principle of spectrophotometry?

Measuring how much a chemical substance absorbs light (correct)

Determining the concentration of a chemical substance

Measuring the intensity of light after it passes through a sample solution

Analyzing the color change of a sample solution

What is the range of wavelength for a UV range spectrophotometer?

$100 - 300$ nm

$185 - 400$ nm (correct)

$600 - 900$ nm

$400 - 700$ nm

What does a monochromator do in a spectrophotometer?

Absorbs most of the light and allows only light of the complementary color with a sufficiently narrow wavelength Signup and view all the answers

What type of light source does most spectrophotometers contain?

Tungsten lamp emitting in the visible range only Signup and view all the answers

What is the function of a monochromator in a spectrophotometer?

It absorbs most of the light and allows only light of the complementary color with a sufficiently narrow wavelength. Signup and view all the answers

What is the range of wavelength for a visible range spectrophotometer?

400 - 700 nm Signup and view all the answers

What is the unit of measuring wavelength in spectrophotometry?

$1*10^{-9}$ m Signup and view all the answers

What type of light source does a UV range spectrophotometer use?

Ultraviolet light range Signup and view all the answers

What does spectrophotometry measure in a sample solution?

Intensity of light as the beam passes through the sample solution Signup and view all the answers

Introduction to Spectrophotometry

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Questions and Answers

What is the unit of measuring wavelength in spectrophotometry?

What is the basic principle of spectrophotometry?

What is the range of wavelength for a UV range spectrophotometer?

What does a monochromator do in a spectrophotometer?

What type of light source does most spectrophotometers contain?

What is the function of a monochromator in a spectrophotometer?

What is the range of wavelength for a visible range spectrophotometer?

What is the unit of measuring wavelength in spectrophotometry?

What type of light source does a UV range spectrophotometer use?

What does spectrophotometry measure in a sample solution?

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