Difference between revisions of "Translations:AY Honors/Optics/Answer Key/107/en"

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[[Image:Lens calc.png|thumb|450px|Measuring the focal point]]
It depends on how accurately you want to measure the focal length. The focal length can be determined by the equation:

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<!-- 4. What should be the minimum distance of light source from the lens when testing for focal length? -->
[[Image:Lens calc.png|thumb|450px|Measuring the focal point]]
It depends on how accurately you want to measure the focal length. The focal length can be determined by the equation:

Measuring the focal point

It depends on how accurately you want to measure the focal length. The focal length can be determined by the equation: