What are the differences between line spectra and continuous spectra in terms of their characteristics and properties?
Line spectra are composed of distinct, discrete lines of light at specific wavelengths, while continuous spectra consist of a continuous range of wavelengths without distinct lines. Line spectra are produced by excited atoms emitting light at specific energy levels, while continuous spectra are emitted by hot, dense objects like stars. Line spectra are unique to each element and can be used to identify elements, while continuous spectra are characteristic of hot, dense objects emitting thermal radiation.