For Accurate measurement of refractive index of transparent liquids, solids and solutions, used in sugar, ghee and oil mills, pharmaceuticals and chemicals chemical laboratories, jam factories and distilleries etc. Measuring range 1.3000 to 1.7000, measurement of sugar )% to 95%. The body of instrument is fixed with a leaning of 600, correct reading can be taken in the fields. It includes Abbe’s double prism with thermostat, compensator, telescope mirror, graduated scale, reading magnifier and radial arm which carries vernier. Complete in polished wooden box
Simple form for school and junior colleges, focussing from one meter to infinity, provided with 10x Ramsden eye piece with cross wire, achromatic objective. Focussing with rack & pinion, height of telescopes is adjustable, fitted on cast iron base
An ideal instruments to demonstrate basic principles of light like reflection, principles of light like reflection, refraction, deviation of light through prism or slab, with standard accessories
To find refractive index of the Prism Material using sodium light with the help of spectrometer
To determine absorption spectrum of lodine vapour
Consisting of two identical wooden trolleys with bakelite wheel and spring loaded axle
Solid brass bar with central split chuck for clamping and suspending wire, size 30cms long and 1.5cm dia, supplied with wall clamp
A disc of 125mm dia 6mm thickness has two holes drilled and tapped for chuck, one in center and other along the edge of the disc, supplied with wall clamp
An aluminium disc of 150mm dia, accurately turned, supports three or more masses fitted into a groove concentric with the circumference, fitted with chuck & supported by steel C.P. rods, fitted on a heavy base with levelling screws
To determine the value of G. It consists of an electronic unit having four sockets and a switch to help hold or release the ball. A heavy retort stand carries a solenoid. When toggle switch is on Catch position, current flows through solenoid producing a magnetic field and holding the ball. The retort stand carries another base. The ball after being released from solenoid fall s on this base. Time taken by the ball to travel from solenoid to second base is recorded in electronic unit.
All metal big size export quality, packed in card box
Consisting of two iron balls, one spring loaded road and a clamp fitted on wooden board.
To study Variation of time with length for a compound pendulum. a powder coated steel bar 100x2.5cms bored at every 5cms and provided with 2 removable knife edges. Complete with powder coated wall braket.Available : Steel / Brass Strip
Consists of steel C.P. rod one meter long, two adjustable knife edges facing each other, two cast iron weights are provided to slide along the length of the bar and can be clamped in any position, two hard wood weights can be used to compensate iron weights. The apparatus is used to find acceleration due to gravity at a place.Iron / Brass CP Parts
Brass C.P. for experiments on rigidity. It consists of a hollow cylindrical brass tube open at both ends with a chuck carrying a mirror. The tube is graduated in mm on both sides, 2 hollow cylinders, all 10cm long, fitted in the bore of the tube, provided with wall clamp
To Find the modulus of rigidity & Young’s Modulus for a wire. The 30cm long wire under test is connected to two brass rods 30cm long. Complete with test wires with connecting screws
It consists of a mild steel frame mounted on a heavy cast iron base fitted with levelling screws, three sliding circular scales graduated in degrees are provided which can be clamped at any position on one of the frame uprights, three pointers for clamping to the test rod are provided
For verifying the relation between forces acting at a point, provided with two clamp type pulleys for mounting at any position, 45cmx30cm board wall type, complete with 3 sets of 50gmx5 iron slotted weights
Spring Constant App.Provided with half meter scale, spring with pointer and slotted weights, fitted on nicely painted iron base
A steam engine utilises the energy contained in steam under high pressure. The energy that is released when steam expands is made to produce rotary motion which can be used for driving the machinery. The seam form boiler is admitted into the cylinder having a piston , when the steam expands, it causes the piston to move, when the piston has travelled to the end of the cylinder and thus completed the stroke, the expanded steam is allowed to escape form cylinder. At the same time the path of the steam is changed over. i.e. live steam under pressure is admitted to the other side of piston causing the later to travel back past its starting point until it has reached the other end of stroke. A steam engine of this type is called double acting because force of steam is applied alternatively on two sides of piston.
