The part of a spectrophotometer that selects the wavelength to irradiate the sample is called the:
A)polychromator.
B)monochromator.
C)beam splitter.
D)light source.
E)optode.

Question

Quizplus · Accepted Answer

A monochromator is a device that selects a narrow band of wavelengths of light from a broader spectrum and directs it towards the sample. It is a critical component of a spectrophotometer.

The Part of a Spectrophotometer That Selects the Wavelength to Irradiate