Answer:
spectroscope is a device that helps us find out the content of stars by splitting light into spectra and wavelengths. It usually disperses white light from a star and splits them into a very wide spectrum of colors. It grants diffraction to an optical component with a periodic structure that splits and diffracts light into several beams. This beams travels in different directions and different colors will be seen. When we wish to attain a resolution closer to the designed value we need to install additional slit at the inlet of the spectroscope.
Explanation:
The spectroscope is also known as spectrometer. It functions by breaking down lights into different wavelengths which is made up of. Light incoming into a spectroscope usually carry spectral information. A spectroscope consists of a slit, a dispersing element, a focusing objective and a collimator.