Physics Equipment
Showing 277–288 of 301 results
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TELESCOPE MODEL ASTRONOMICAL
★★★★★Comprising a convex lens 38mm diameter x 150mm focal length, mounted in a plastic tube 400 x 50mm diameter, and а double convex lens 50mm diameter 500mm focal length mounted on a tube 400 x 55mm diameter. -
TELESCOPE MODEL TERRESTRIAL
★★★★★Specification as GP-505.2 but with Plano-concave eye-piece lens to provided erect image. -
THERMAL CONDUCTIVITY KIT
★★★★★A set of 5 different material rods of size 250 x 3mm length x dia of copper, brass, aluminium, iron and Borosilicate glass. Set consists of 8 rods each packed in card box. -
THERMOCOUPLE BISMUTH & ANTIMONY
★★★★★One Bismuth and one Antimony base 60 x 5 x 2mm joined in V form at one end and mounted on a wooden board 80 x 70mm with copper connecting wires. -
THERMOCOUPLE SIMPLE
★★★★★To show production ofa thermostatic e.m.f Two wires of copper constant 300mm long joined together at one end. -
THERMOPILE
★★★★★Consists of 24 pairs of bismuth and antimony bars connected in series and arranged in the form of a rectangular pile with the junctions equally divided between the two ends. -
THERMOPILE COPPER IRON
★★★★★Four each of copper and iron wires 125mm long joined together to from 7 points, four on one side and 3 on the other, with brass connections on the outer wires. -
TICKER TAPE TIMER- d.c.
★★★★★Similar to 196.1, but operates on 12V D.C. Produces dots at 1/50s intervals only. -
TICKER TAPE TIMER-a. c.
★★★★★Operates on 12 V a. c. The timer employs electromagnet, with spring loaded armature which vibrates above a support table for a carbon paper disc. Paper tape, drawn through guides on the table, is struck by a dotting screw carried on the armature. -
TORSION APPARATUS (HORIZONTAL)
★★★★★Searle's pattern, two cast iron feet each with 3 through holes and grub securing screws, separated by 2 supporting rods approximately 700mm long one of which is graduated in cms and mms, wheel 165mm dia, over groove moving in ball bearings, mounted on front foot, with spindle carrying split collect chuck for holding one end of test rod 55cms long 5mm dia, other end supported with clamping block through rear foot. -
TORSION APPARATUS VERTICAL
★★★★★It consists of a heavy mild steel frame mounted on a heavy tri-leg cast iron base. Upper end of the rod 900mm length and 5mm dia under test is clamped by a 3-jaw chuck and the lower and is clamped, into the axis of a torsion couple three metal circular scale graduated in single degrees which are free to slide on one of the graduated rod can be clamped at any position. Three pointers for clamping to the test rod are provided. Strings to apply the deflecting couple and having pans at their free and pass over bearing pulleys which are clamped to the uprights without weights. -
TRAIN OF GEAR WHEELS
★★★★★For demonstrating the relationship between velocity ratio and number of teeth. Three gear wheels, approx. 60, 80, 110 pitch dia, with 12, 18, 24 teeth respectively, each mounted on wooden board provided with grooves for adjusting gear wheels by changing belt.