Noun | 1. | Planck's law - (physics) the basis of quantum theory; the energy of electromagnetic waves is contained in indivisible quanta that have to be radiated or absorbed as a whole; the magnitude is proportional to frequency where the constant of proportionality is give by Planck's constant |

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plan of attack

planar

Planaria

Planarian

Planarida

Planarioid

Planary

planate

planation

Planch

Plancher

Planchet

Planchette

Planching

Planck

Planck's constant

**-- Planck's law --**

Planck's radiation law

Plane

plane angle

Plane at infinity

Plane chart

Plane curve

plane figure

plane geometry

Plane iron

Plane locus

Plane of flotation

Plane of polarization

Plane of projection

Plane of refraction

Plane problem

Plane sailing

planar

Planaria

Planarian

Planarida

Planarioid

Planary

planate

planation

Planch

Plancher

Planchet

Planchette

Planching

Planck

Planck's constant

Planck's radiation law

Plane

plane angle

Plane at infinity

Plane chart

Plane curve

plane figure

plane geometry

Plane iron

Plane locus

Plane of flotation

Plane of polarization

Plane of projection

Plane of refraction

Plane problem

Plane sailing