200mm long tube with bulb in the centre, packed in velvet box
Metal box wiht piano type on/off switch. Out put is through a 3 socket. The trnsformer is auto leak type and gives starting voltage of 440V which reduces itself when the lamp glows.Available : 35 / 55 wallt.
To demonstrate the phenomenon of interference of light using bi-prism and to understand the concept of interference, image formation width of fringes. It consists of 1 1/2 meter long stainless steel double rod optical bench with following accessories.Biprism holder having fine radial motion by screws. Adjustable slit with ground ss jaws Micrometer Eye Piece Ramsden’s 10x, carried on a slider which moves along a micrometer screw.Automatic lens holder with spring action for equal opening and closing of both ends
Low Pressure lamp giving spectral lines in 58890 A and 58950 A wavelenght range.Available : 35 / 55 Watt
With a rated output of 80 watt, this source provides sufficient intensity of white light for almost any experiment
Same as wooden box for sodium vapor lamp but slightly smaller
Wooden box with slits on three sides to perform 3 experiments at a time, each slit has two riders to adjust the lenght of slit or close it when no experiment is being performed.Regular quality made of ordinary wood.Deluxe quality made of superior wood and has different sized slits for different experiments. The height of the box can also be adjusted to suit the requirements of the experiment
Amounted on nice duco painted round cost iron heavy base with three levelling screws and 25mm dia and 450mm long steel pillar. The telescope is provided with high class optical combination and brass. C.P. fittings, provision for up and down, to and from moting is incorporated, complete with perspex scale and scale and scale holder.
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.
