Continuous spectrum is a term used in physics to describe a range of wavelengths of light that are emitted from a source. The spelling of this term can be explained using the International Phonetic Alphabet (IPA) phonetic transcription. The first syllable is pronounced "kən-ˈtɪn-jʊəs", with the stress on the second syllable. The second syllable is pronounced "spɛk-tər", with the stress on the first syllable. This spelling represents the English pronunciation of the word, and allows for accurate communication and understanding within the field of physics.
A continuous spectrum, in the context of physics and optics, refers to the uninterrupted range of electromagnetic radiation or light wavelengths that encompasses all possible frequencies within a given range. It is characterized by a smooth, endless distribution of wavelengths, without any distinct or discontinuous gaps or lines.
When an object emits light, such as a heated object or a star, its spectrum, if observed through a prism or a spectrometer, may exhibit a continuous spectrum. This occurs because the object emits radiation in a wide range of frequencies, resulting in a seamless band of colors that blend into one another. Unlike other types of spectra, such as discrete or line spectra, which display specific frequencies or wavelengths, a continuous spectrum provides a continuous and uninterrupted sequence of frequencies.
A classic example of a continuous spectrum is natural sunlight, where white light appears to be made up of various colors when passed through a prism. This is because sunlight contains a wide range of wavelengths, from infrared to ultraviolet, which blend together seamlessly. Continuous spectra are also observed in various astronomical phenomena, such as starlight, where different elements and gases contribute to the overall smooth spectrum.
In summary, a continuous spectrum represents an unbroken sequence of wavelengths across the electromagnetic spectrum, without any discrete gaps or lines, resulting in a smooth and uninterrupted distribution of frequencies.
One in which there are no absorption bands or lines.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "continuous" originates from the Latin word "continuus", meaning uninterrupted, without interruption or break. It is derived from the verb "continēre", which means to hold together or contain.
The term "spectrum" in the context of light or electromagnetic radiation refers to the separation of electromagnetic waves by their wavelengths or frequencies. It was initially introduced in the early 17th century by Sir Isaac Newton, derived from the Latin word "spectrum" meaning appearance or image.
Therefore, the term "continuous spectrum" implies an unbroken or uninterrupted arrangement of electromagnetic waves with various wavelengths or frequencies.