Dictionary.com

Malus' law

[ muh-loos-law; French ma-lys ]
/ məˈlus ˈlɔ; French maˈlüs /
Save This Word!

noun Optics.
the law stating that the intensity of a beam of plane-polarized light after passing through a rotatable polarizer varies as the square of the cosine of the angle through which the polarizer is rotated from the position that gives maximum intensity.
QUIZ
QUIZ YOURSELF ON OPPOSITES OF RED BEFORE YOU TURN SCARLET
We have a challenge that will make you blush: do you know the many words and ways to describe the opposite of red?
Question 1 of 7
Which of the following colors is used to symbolize AIR?
Also called law of Ma·lus, Ma·lus co·sine-squared law [muh-loos-koh-sahyn skwaird-law]. /məˈlus ˈkoʊ saɪn ˈskwɛərd ˌlɔ/.

Origin of Malus' law

Named after E. L. Malus (1775–1812), French physicist
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use Malus' law in a sentence

FEEDBACK