Question

Which is not the Spectrometer principle for measuring spectral reflectance factors?

• A. Flywheel diffraction principle
• B. Monochromator principle
• C. Filter wheel principle
• D. Diffraction grating principle

Hint:

Spectrometers analyze light by separating wavelengths, primarily using diffraction gratings and filters.

Answer 1

The Correct Option is A

Spectrometers use monochromators, filter wheels, and diffraction gratings to measure spectral reflectance factors. These methods separate light into its component wavelengths to analyze material properties. The flywheel diffraction principle, however, is not used in this context and is unrelated to spectral measurement.