Final answer:
Yes, a miniature wavelength selectable light source can be created by using a broad spectrum LED or a tiny xenon/deuterium lamp as a light source combined with a small diffraction grating and other necessary optics like mirrors and lenses.
Step-by-step explanation:
Yes, a miniature wavelength selectable light source can be created by using a broad spectrum LED or a tiny xenon/deuterium lamp as a light source combined with a small diffraction grating and other necessary optics like mirrors and lenses. This setup can be used in spectroscopy to separate and analyze different wavelengths of light. The broad spectrum LED or lamp emits light of various wavelengths, and the diffraction grating separates these wavelengths, allowing specific wavelengths to pass through. By rotating the grating, different wavelengths can be selected.