Physics Ontology

One map of physics, three ways in. Drill down on any quantity to see its units, the equations it lives in, and how its values span the universe.

QuantitiesAreas & EquationsTimeline
← Back to all quantities
mm
Optics

Magnification

Ratio of image size to object size for a lens or mirror.

SI unit

dimensionless (—)

Dimension: [ 1 ][\,1\,]

Other units

  • dimensionless (—)

Order of magnitude

How values of magnification span the physical world (in —, log scale).

Reading glasses
2.50 × 100 —
Microscope objective
4.00 × 101 —
Lower limit10-2 —Upper limit103 —

Appears in 1 equation

Lens Magnification
m=vum = \dfrac{v}{u}