(Q12873)

Revision as of 08:47, 30 June 2023 by Fire (talk | contribs) (‎Created claim: uses (P36): refraction (Q12889))

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Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \frac{1}{f} = (n-1) \left[ \frac{1}{R_1} - \frac{1}{R_2} + \frac{(n-1)d}{n R_1 R_2} \right]}
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