GENERAL KNOWLEDGE

Detailed explanation-1: -A spectrograph-sometimes called a spectroscope or spectrometer-breaks the light from a single material into its component colors the way a prism splits white light into a rainbow. It records this spectrum, which allows scientists to analyze the light and discover properties of the material interacting with it.

Detailed explanation-2: -Just as a geologist collects rocks or minerals and a botanist collects plants, an astronomer collects light. Astronomers usually cannot touch the objects they study, like stars or galaxies. But they can analyze the light these celestial objects radiate using a spectroscope.

Detailed explanation-3: -Spectroscope is also known as optical spectroscope, spectrophotometer or spectrograph. Usually, the spectrometer present in the spectroscope will produce spectral lines and help them to measure wavelengths and intensities of light.