Source / pinned edition
The Propagation of Light
Source of package openstax.optics · OpenStax University Physics, ch. 1 The Nature of Light, module m58505
- work
- urn:openstax:clir:optics#M58505
- number
- OpenStax University Physics, ch. 1 The Nature of Light, module m58505
- kind
- urn:openstax:clir:optics#treatise
m58505/index.cnxml at commit d0ed34a (main, 2026-06-11)
- edition
- urn:openstax:clir:optics#M58505_MAIN
- language
- en
- officiality
- official
- materialisation
- PINNED_OFFICIAL_BYTES
- life cycle
- adopted: 2026-06-11
Publications
| URI | Type | documentHash | Retrieved |
|---|---|---|---|
| https://raw.githubusercontent.com/openstax/osbooks-university-physics-bundle/d0ed34a5851119a42e3d972dfc0ff49e4663977c/modules/m58505/index.cnxml | application/xml; charset=utf-8 | sha256:ddf821512cab950f538c9087235142bc4cbe6ad068b2ce9b813855f9dfec5a00 | 2026-09-06T00:00:00Z |
Fragments — 3
module/m58505#fs-id1172100634587 · defn
en · official · sha256:aab9abc1960df8e0031852550e3f536eb0926a22920eb2e528425d5e8629f10c
<definition id="fs-id1172100634587">
<term>geometric optics</term>
<meaning id="fs-id1172098383397">part of optics dealing with the ray aspect of light</meaning>
</definition>module/m58505#fs-id1172098405962 · defn · referenced by: 3
en · official · sha256:1a429c0ec37dca7fcf151487055b0900d9abc480c3d82057c82517e60db8a6f3
<definition id="fs-id1172098405962">
<term>index of refraction</term>
<meaning id="fs-id1172100951965">for a material, the ratio of the speed of light in a vacuum to that in a material</meaning>
</definition>Referencing norms: IndexIsRatioOfSpeeds, speed_of_light_in, speed_of_light_in_vacuum
module/m58505#fs-id1172098256586 · defn
en · official · sha256:47eb8342243f9b58dc55a2e5e52a62bb9e128409f242264d82511e14f5eec669
<definition id="fs-id1172098256586">
<term>ray</term>
<meaning id="fs-id1172098315514">straight line that originates at some point</meaning>
</definition>The hash beside the text is the sha256 of its exact bytes. It is the check that the text shown matches the one pinned in the package: a divergence fails the oracle’s static analysis.