Multiple choice

This emits a beam that bounces off a material and back to an instrument...

  1. macroscope

  2. infrared spectroscopy

  3. polarizing light microscopy

  4. wavelength splitoscropy

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Infrared spectroscopy measures the absorption or reflection of infrared light by a material, providing a unique chemical fingerprint. It is a standard method for identifying fiber composition.