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Stokes' law

American  

noun

Physics.
  1. the law that the force that retards a sphere moving through a viscous fluid is directly proportional to the velocity of the sphere, the radius of the sphere, and the viscosity of the fluid.

  2. the law that the frequency of luminescence induced by radiation is usually less than the frequency of the radiation.


Etymology

Origin of Stokes' law

Named after Sir G. Stokes

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

One can measure the time it takes for a particle to fall a certain distance and then use Stokes' law to calculate the viscosity of the liquid.

From Textbooks • Aug. 12, 2015

Using Stokes' law, verify that the units for viscosity are kilograms per meter per second.

From Textbooks • Aug. 12, 2015

Stokes' law describes sedimentation of particles in liquids and can be used to measure viscosity.

From Textbooks • Aug. 12, 2015