Continuous Spectrum
| Also Known As | Continuous emission spectrum, white light spectrum, broadband spectrum |
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What is Continuous Spectrum?
A continuous spectrum contains all wavelengths of electromagnetic radiation within a range, appearing as a rainbow of colours with no gaps. It is produced by hot dense objects (solids, liquids, or dense gases) such as incandescent light bulb filaments. In contrast, line spectra contain only specific discrete wavelengths and are characteristic of individual elements.
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
A continuous spectrum contains all wavelengths of electromagnetic radiation within a range, appearing as a rainbow of colours with no gaps. It is produced by hot dense objects (solids, liquids, or dense gases) such as incandescent light bulb filaments. In contrast, line spectra contain only specific discrete wavelengths and are characteristic of individual elements.
Continuous spectra from light sources (tungsten lamps, globars) are used as reference sources in absorption spectroscopy (UV-Vis, IR, Raman). Solar spectrum analysis (Fraunhofer absorption lines on a continuous background) led to discovery of helium. Black-body radiation calibration uses continuous …
Sources producing continuous spectra across UV-visible-IR emit hazardous UV radiation. Avoid direct viewing of high-intensity broadband sources (arc lamps, xenon sources) without UV-rated eye protection. Near-IR from hot surfaces can cause retinal damage.