Property talk:P2808
Documentation
wavelength
spatial period of a wave
spatial period of a wave
| Represents | wavelength (Q41364) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Data type | Quantity | |||||||||
| Allowed units | decimetre (Q200323), nanometre (Q178674), micrometre (Q175821), millimetre (Q174789), centimetre (Q174728), ångström (Q81454) or metre (Q11573) | |||||||||
| Example | hydrogen line (Q1406191) → 21.10611405413 centimetre dimethyl carbonate (Q416254) → 589 nanometre | |||||||||
| Tracking: usage | Category:Pages using Wikidata property P2808 (Q30303704) | |||||||||
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| Proposal discussion | Proposal discussion | |||||||||
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[create Create a translatable help page (preferably in English) for this property to be included here]
Units: “decimetre (Q200323), nanometre (Q178674), micrometre (Q175821), millimetre (Q174789), centimetre (Q174728), ångström (Q81454), metre (Q11573)”: value unit must be one of listed. (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). List of violations of this constraint: Database reports/Constraint violations/P2808#Units
