All related terms of 'spectra'

The spectrum is the range of different colours which is produced when light passes through a glass prism or through a drop of water. A rainbow shows the colours in the spectrum.

a spectrum consisting of a number of bands of closely spaced lines that are associated with emission or absorption of radiation by molecules

a spectrum of charged particles , arranged in order of mass or mass-to-charge ratios

the range of electromagnetic frequencies used in radio transmission , lying between 10 kilohertz and 300 000 megahertz

the continuous spectrum or pattern of bright lines or bands seen when the electromagnetic radiation emitted by a substance is passed into a spectrometer . The spectrum is characteristic of the emitting substance and the type of excitation to which it is subjected

the range of wavelengths of electromagnetic radiation that is normally visible , from 380 to 760 nm

the characteristic pattern of dark lines or bands that occurs when electromagnetic radiation is passed through an absorbing medium into a spectroscope . An equivalent pattern occurs as coloured lines or bands in the emission spectrum of that medium

a spectrum that contains or appears to contain all wavelengths but not spectrum lines over a wide portion of its range . The emission spectrum of incandescent solids is continuous ; bremsstrahlung spectra consisting of a large number of lines may appear continuous

The frequency spectrum of an electrical signal is the distribution of the amplitudes and phases of each frequency component against frequency.

the complete range of electromagnetic radiation from the longest radio waves ( wavelength 10 5 metres ) to the shortest gamma radiation (wavelength 10 –13 metre)