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Biology, 03.09.2020 01:01 Mw3spartan17

Lidia plans an experimental investigation to see how the thickness of a lens affects the point where a beam of light is focused. She plans to shine light through a lens and measure the distance to a screen that is placed where the beam focuses. What are the controls in Lidia’s investigation?

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Lidia plans an experimental investigation to see how the thickness of a lens affects the point where...
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