TPGIT/TANSCHE / Physics/ LabEquipments /1894/A3/2026

Traveling Vernier Microscope with brass metal / SS horizontal scale 20 cm and vertical scale 14 cm, Least count = 0.001 cm and Vernier = 0.01mm with magnifier lens, Provided with the best quality Achromatic objective and 10x Ramsden Eye piece with fine cross line wire. Complete with nicely polished wooden box.

Photo-electric effect, - complete Setup to determine the Planck’s constant Planck Constant by Photoelectric Effect : Photosensitive device : Cs Vacuum photo tube , Light source : Halogen tungsten lamp12V/35W , Color filters : 635nm(red), 570nm(orange), 540nm(yellow), 500nm (green), 460nm (blue), Accelerating voltage : -15V to OV & O to 15V, < ± 2% , Output : ±15V continuously variable through multi-turn pot , Display : 3½ digit 7-segment LED , Accuracy : ±0.2% , Current detecting unit : Digital Nano ammeter , Range : 10001.1A, 1001.1A, 10[tA a 1 μA , Resolution : 1nA , Display : 3½ digit 7-segment LED , Accuracy : ±0.2% , Power Requirement : 220V ± 10%, 50Hz , Current multiplier : ×1, × 0.1, ×0.01 & ×0.001, Scale : Length 400 mm , Dark- Current : < 0.003μA , Measuring error : < ± 15% compared with the recognized value (h=6.62619 ×10-34J.s) . .