Physics
Continuous Emission Spectrum
Quick fact
The Sun emits a continuous emission spectrum, appearing as a smooth white light to our eyes.
Why this is interesting
Have you ever wondered why a heated metal rod glows with a smooth, continuous light? It’s not random—it follows a specific pattern called the continuous emission spectrum.
Read the full explanation
Understanding Continuous Emission Spectrum
When an object is heated to high temperatures, it emits electromagnetic waves across all wavelengths. This creates a continuous spectrum without any gaps or distinct lines, unlike the emission spectra of gases.
A deeper explanation
A continuous emission spectrum arises from thermal radiation, where charged particles in matter vibrate and emit energy at all wavelengths. The shape of this spectrum depends on the object’s temperature, following Planck's law. This is why stars appear to glow with a smooth light—because they emit across the entire visible range.