For demonstration of interference, diffraction and holography. Laser source and switch mode power supply are housed in a thick aluminium box with a hole through which laser beam comes out. The laser unit is mounted on a precision 1 meter double rod SS optical bench. Intensity of laser beam is 2mW and it is red in color. Input power is 220V AC. Minimum operating life is 15,000 hrs. and shelf life is 10 year. The unit is supplied with single slit and diffraction gratingAlthough this is a very safe equipment to handle still a few precautions will ensure proper safety and long life viz. Operate the laser at least once in a fortnight
Diode Laser Assembly
Workable on 230V AC, it gives stabilized power output of 2 amp. 12V DC, housed in sturdy metal box.
The apparatus consists of heavy metal base 9x6, iron road, one set of clamp & boss-head, split rubber cork and 1” brass bob with thread.
Set of three half meter scales on wooden stand, supplied without weights
60cm long, fitted with glass plate and clamping arrangement to change angle, provided with frictionless pully, metal roller, scale-pan and graduated arc.Available : Aluminium / Brass
To study laws of friction. 60cm long wooden board, fitted with glass plate, provided with frictionless puolley, wooden block, pan and a set of friction rollers
A simple experiment to show transfer of momentum. It consists of metal base with a wire frame. Six identical steel balls are suspended end to end. When one ball is mode to strike the rest of the balls the last one ball is shifted away. When two balls are made to strike the rest of the system last two balls are shifted
To determine wave length of Sodium light using Newton Ring Microscope
To determine Surface Tension of a liquid by Capillary Rise Method using Travelling Microscope
A carefully turned brass disc 125mm dia and 12 mm thickness is provided with split chuck in the center. An aluminium ring of outside dia exactly 125mm has two pins which fit into two cavities in the disc so that edge of the ring is in flush with the edge of the disc.Available : Brass / Iron Disc
Consists of two cast iron feet, two supporting rods, one wheel with groove moving on ball bearings is provided with chuck to hold the test rod, aluminium scales with pointer are attached to specimen rod.Available with Half meter long rods and two scales & with one meter long rods and three scales.
To determine Young’s Modulus of a wire. It consists of two rectangular frames connected by a link. The frames are fitted with self cantering chucks, provided with a spirit level a speedometer, a cast iron ceiling attachment and weight.Available : Iron / Brass Frame
Comprising a metal bar one meter log resting on knife edges of two heavy table clamps, hanger with knife edge moves on metal bar, a spherometer fitted on cast iron stand with electric contacts is also provided
20cms in dia and 45mm wide, accurately balanced wheel is mounted on a horizontal shaft held in ball bearings. The wheel is marked and a pointers fixed to the bracket. The bracket has four holes and can be fixed tot the wall.Available : With / Without Counter Available : With / Without Counter
Consists of wooden plank, two rods, metal strip with hooks, two acrylic spring balance 500gm each one meter scale with hooks, two sets of slatted weights 50gm x 5. It is used to verify conditions of equilibrium for parallel forces by showing that sum of upward forces is equal to sum of downward forces
To demonstrate the conversion of kinetic energy into potential energy and vice versa. It consists of a rotating axle which is held in horizontal position by two threads attached to a metal strip and is moved upwards by winding of thread. When the wheel is released from its wound position, wheel acquires kinetic energy on its way down. At the lowest position when the threads are full unwound, they start rewinding around the axle of wheel and rises upward again. The whole assembly is fitted on a stand.
Consists of wide mouth glass bottle of cap 10 Ltr. The bottle is placed inside a wooden box packed with cotton wool to protect form temperature change. It is fitted with metallic neck having three openings. Openings A is connected to compression pump, opening B connected to oil manometer and C is connected to atmosphere. Complete with pump & manometer
Vertical flask type demonstration mode, on metal base.In a four stroke engine, to perform full cycle of operations (changing the contents of cylinder and effecting combustion) four strokes of piston are required. This type of engine is used in Motor bikers, Petrol driven cars and certain types of scooters
This is an internal combustion engine. The vaporized fuel is mixed with air in carburettor. This mixture’s sucked by engine (Intake stroke - 1st stroke) through inlet valve which opens. The descending piston draws fresh petrol and air mixture into the cylinder. This mixture is compressed (Compression strokes 2nd stroke). During compression the mixture gets heated and ignition burns the fuel converting into a large volume of gas which pushes the piston. while the valves are closed the piston is pushed to the bottom of the cylinder by the gases of combustion (Power Stroke 3rd stroke) The exhaust valve opens due to momentum gained by wheels piston is pushed upwards and burnt gases are expelled (Exhaust stroke - 4th stroke).
