tender for purchase of physics lab equipments , sonometer apparatus - sonometer with meter scale attached along with knife edge, tuning forks set 256,384,512 ranges, hammer, slotted weight- 500 gm each to a total of 3 kg. brass wire(5m) , solar cell kit - the apparatus consist of variable dc power supply, led, solar cell two multi meters (or an ammeter and a voltmeter). a variable dc power supply of 0-5v. light source is provided by led. the illumination intensity of the led can be controlled. , 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 g is for battery & one marked b is for galvanometer one toggle switch is provided for internal battery a sensitive galvanometer is provided in the bridge. , viscosity apparatus tube - stokes apparatus with meter scale attached and long cylindrical glass jar, glass beads small size (1 box), screw gauge (0-15 mm) , torsion pendulam - torsional pendulum metallic disc, symmetrical masses and pendulum stand, steel wire , ohms law verification kit- battery eliminator -3a, (2,4,6,8,10,12 v),tubular rheostat 20-3.3 a, one way plug key, analog type dc ammeter(0-2a), voltmeter (0-5v), standard resistance coil of 1,2 ohm(2-set) wound on a wooden bobbin , compound bar pendulam - one-meter-long iron strip well painted with holes at a distance of every 5 cm and also with pair of brackets and a heavy base table top stand with stop clock.