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ID number:525162
 
Evaluation:
Published: 04.12.2014.
Language: Latvian
Level: Secondary school
Literature: 3 units
References: Not used
Extract

Varavīksnes 7 krāsu uzskaitījums no loka ārmalas uz iekšpusi:
Sarkana
Oranža
Dzeltena
Zaļa
Gaiši zila
Zila
Violeta

Varavīksnes redzamos gaismas toņus nosaka:
Lietus pilienu izmērs, ja to diametrs 1 mm- 2mm, tad parasti redz spožu violeto, zaļo un sarkano loku. Samazinoties pilienu diametram, sarkanā krāsa pakāpeniski kļūst blāvāka
Kad pilienu diametrs ir tikai desmitdaļu milimetra liels, varavīksnes lokā redz tikai izplūdušu violeto krāsu.
Ja pilieni ir vēl mazāki, tad varavīksne ir pavisam bāla

Jo augstāk novērotājs atrodas (kalnos vai lidmašīnā), jo pilnīgāks ir varavīksnes loks.


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