tender for supply of equipment for physics lab in first year (under upgradation of laboratories) , list of equipment , decade resistance box 3 or 4 dials, range 0.1ω to 100ω or 1kω, constantan/manganin wire coils. , travelling microscope least count-0.01mm, magnification -10x, ( eye piece), vernier scale-50divisions, moment-fine and corse adjustment screws for horizontal and vertical axes,objective lens-75mm focal length,vertical travel range-0 to15cm,horizontal range- 0 to 15 cm , wheatstone bridge kit series arm: four decade dials in steps of thousands, hundreds, tens, & units of ohms. ratio arm: the ratio arm of the bridge is capable of selecting multiplying factor of 0.001, 0.01, 0.1, 1, 10, 100, 1000 for resistance measurements. two press keys are provided, one marked b is for battery & one marked g is for galvanometer one toggle switch is provided for internal battery a sensitive galvanometer is provided in the bridge. , torsion pendulum material: chrome plated brass disk diameter: 100-150mm wire material phosphor bronze wire length: 500mm stand height: 500-700mm stop clock , helical spring apparatus structure: a rigid support mounted on a heavy metal base, typically cast iron, to ensure stability during tests. springs: high-tensile steel spiral springs, typically (approx 25 mm) diameter, (100 mm) long. measurement scale: a vertical steel meter scale, usually with (1mm) graduations, for precise deflection measurement. loading mechanism: a, typically (50g), hook-attached weight hanger at the bottom. pointer: a fine pointer attached to the bottom of the spring moves along the scale. accessories: includes a set of slotted weights (e.g., (6times 50g) or similar sets) for incremental loading.