Description

5 inch specific gravity cylinder with a top hook for spring-scale massing

Acrylic double-concave lens at 86mm length and 20cm diverging focal length

separation

Designed to make electric field lines visible

Plus-or-minus 2

Rectangular Refraction Glass Block, 75 x 50 x 18mm Lab Supplies_Classroom 5 inch specific gravity cylinderPairs a 75 by 50mm face with a thicker 18mm body on a rectangular glass refraction block, the optically worked beveled edges widening the visible lateral shift in refraction angle demos.

Exchange/Return Notes

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Rectangular Refraction Glass Block, 75 x 50 x 18mm Lab Supplies_Classroom 5 inch specific gravity cylinder

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