Planck's law

British  

noun

1. physics a law that is the basis of quantum theory, which states that the energy of electromagnetic radiation is confined to indivisible packets (quanta), each of which has an energy equal to the product of the Planck constant and the frequency of the radiation

---

Example Sentences

As we saw above, Planck's law of black body radiation dictates that an object's temperature determines its color.

From Scientific American

In such cases Planck's law still applies, but the resulting glow will be of a color beyond the range to which our eyes or ordinary telescopes are sensitive.

From Scientific American

We can see this effect, known as "Planck’s law of black body radiation," in action whenever we look at the different colors of stars.

From Scientific American

In this and subsequent studies, astronomers have been able to make a precision measurement of the star’s color, and then have used Planck's law of black body radiation to calculate its temperature.

From Scientific American

He wanted to know how I had hit upon the idea of deriving Planck's law in this way.

From New York Times