Question

The absorption spectrum for a pigmented molecule measures: A) The concentration of the molecule in the...

The absorption spectrum for a pigmented molecule measures:

A) The concentration of the molecule in the solution

B) The change in absorbance over time

C) Its absorbance of a particular wavelength (like 475 nm)

D) Its absorbance of all wavelengths of visible light

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Answer #1

soln: D) Its absorbance of all wavelengths of visible light.

Spectrophotometer is an instrument that is used to measure the amount of light absorbed by a pigment.

Absorption spectrum is graphical representation which plots the pigment’s light absorption versus the wavelength.

Absorption spectrum for a pigmented molecules Measures all the wavelength of light absorbed by the pigment of visible light. Different pigments absorb different wavelength of the light.

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