Description

blue and the secondaries green

each plain-shanked for clamping or holding

Designed to measure Planck's constant through the photoelectric effect

and ray-tracing demos

matching the geometry of companion copper and iron rods for controlled thermal-conductivity comparisons

Double Concave Acrylic Lens, 86mm, 20cm Focal Length Glassware blue and the secondaries greenAcrylic double concave lens at 86mm length and 20cm diverging focal length, the lightweight body producing virtual upright reduced images for safer per desk divergence demonstrations.

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Double Concave Acrylic Lens, 86mm, 20cm Focal Length Glassware blue and the secondaries green

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