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ID number:643172
Author:
Evaluation:
Published: 07.05.2008.
Language: Latvian
Level: Secondary school
Literature: n/a
References: Not used
Extract

Veicot laboratorijas darbu, tika izmērīts mainīgs priekšmeta attālums d un attēla attālums f (no lēcas). Pēc tam tika noteiks savācējlēcas fokusa attālums F=9,16cm un optiskais stiprums D=0,1091m-1 .
Ja plānas lēcas priekšā novieto priekšmetu, tad gaismas stari, kas nāk no priekšmeta, ejot caur lēcu, var veidot priekšmeta attēlu. Lai uz ekrāna iegūtu reālu attēlu A1B1, priekšmeta attālumam ir jāpārsniedz fokusa attālums. Uz ekrāna tika iegūts skaidrs, apgriezts „F” burta attēls (arī spuldzes kvēldiega attēls).…

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