ESAW Hook’s Law Apparatus (EEC-11638) esaw newton's colour disc on bench clamp and light wavelength calculations

and light wavelength calculations

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ESAW Hook’s Law Apparatus (EEC-11638) esaw newton's colour disc on bench clamp and light wavelength calculationsESAW Hooks Law Apparatus (EEC 11638) It consists of a support with mounted millimeter scale, a spiral spring, a hanger for weights. The scale is 12 cm long, engraved on a plane mirror to permit parallax illumination by reflection and mounted with elevation adjustment on a support rod. The steel spring 1 cm in diameter and 3 cm long when unstretched is suspended from a hook above the scale. Weights not included.