Visible light from a distant star can be spread into a spectrum by using a glass prism or
A)a diffraction grating.
B)adaptive optics.
C)a telescope.
D)a flat glass mirror.

Question

Quizplus · Accepted Answer

A diffraction grating is commonly used to spread light into a spectrum by diffracting the light and splitting it into its spectral components. While a glass prism can also be used, a diffraction grating is typically more precise in separating the different wavelengths of light. Adaptive optics and a telescope are not used for this specific purpose, and a flat glass mirror would not be able to split the light into a spectrum.

Visible Light from a Distant Star Can Be Spread into a Spectrum