I'm trying to figure out what/how to use one without seeing/having one.(adsbygoogle = window.adsbygoogle || []).push({});

Am I right in saying the following.

It has three legs, which form the vertices of an equilateral triangle. The centre leg is placed onto a lens, and it's adjusted until they all balance/evne out. Then the distance of it has been adjusted is noted, and put into this formula (on wikipedia I found);

r = [ (a^2 + 3h^2)/6h ]

in which a = distance between feet, and h is the distance it's been adjusted.

Is there a diagrammatical representation of this? Can someone correct any mistakes?

Thanks

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# Homework Help: How to use a Spherometer

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