Which information about objects in space can spectroscopy provide? Select the two correct answers.(1 point)
what are the options?
Spectroscopy can provide the following information about objects in space:
1. Chemical composition: Spectroscopy allows scientists to analyze the patterns of wavelengths and intensities in the electromagnetic spectrum emitted or absorbed by an object. By identifying the specific absorption and emission lines, they can determine the chemical elements present in the object being observed.
2. Temperature and physical properties: Spectroscopy can also provide information about the temperature and physical properties of objects in space. For example, the shape and width of absorption or emission lines can indicate the temperature of the object, while the intensity of certain lines can reveal its density and pressure.
Spectroscopy is a method used to analyze and study the interaction between matter and electromagnetic radiation. It involves analyzing the different wavelengths (colors) of light emitted, absorbed, or scattered by an object. Spectroscopy can provide several types of information about objects in space, including:
1. Composition: Spectroscopy can identify the chemical elements present in an object. Each element has a unique fingerprint in terms of the wavelengths of light it emits or absorbs. By analyzing the spectral lines, scientists can determine the composition of stars, planets, galaxies, and other celestial objects.
2. Motion: Spectroscopy can also provide information about the motion of objects in space. The Doppler effect, which is the change in wavelength of light based on the motion of the source, can be observed through spectroscopy. By analyzing the shifting of spectral lines to shorter or longer wavelengths, scientists can determine whether an object is moving toward or away from us, as well as its speed.
Therefore, the correct answers are:
1. Composition
2. Motion