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Physics Equipment
METAL STRIPS
Metal strips of size about 200 x 12mm lLength x width], of different metals, each supplied in pack of 10
METAL STRIPS 8rass
Metal strips of size about 200 x 12mm lLength x width], of different metals, each supplied in pack of 10
METAL STRIPS Aluminum
Metal strips of size about 200 x 12mm lLength x width], of different metals, each supplied in pack of 10
METAL STRIPS Copper
Metal strips of size about 200 x 12mm lLength x width], of different metals, each supplied in pack of 10
METAL STRIPS Mild Steel
Metal strips of size about 200 x 12mm lLength x width], of different metals, each supplied in pack of 10
METAL STRIPS Stainless Steel
Metal strips of size about 200 x 12mm lLength x width], of different metals, each supplied in pack of 10
METAL STRIPS Tin
Metal strips of size about 200 x 12mm lLength x width], of different metals, each supplied in pack of 10
METALS COLLECTION SET
A collection of 12 different types of metals mounted in a tray with glass front. All specimens properly labeled and numbered.
METERS ON DESK STAND
All meters provided with 4mm colour coded terminals for connections. Sloping face for bench use provides convenient reading.
Round, Oesk Stand: Unbreakable, moulded, ABS Plastic Black Case; Accuracy ?2.0 FSD; Scale Length about 50mm with knife edge pointer, with or without anti-parallax mirror scale; Desk stand with 4mm terminals at the top; Overall Size about 90x90x110mm.
Round, Desk Stand with Front Terminal: Unbreakable, moulded, ABS Plastic Black Case; Accuracy ?2.0 FSD; Scale Length about 50mm with knife edge pointer, with or without anti-parallax mirror scale; Desk stand with 4mm terminals at the front; Overall Size about 110x80x75mm.
Rectangular: Unbreakable, moulded, ABS Plastic Black Case with clear transparent front window; Accuracy ?2.0 FSD; Scale Length about 60mm with knife edge pointer, with or without antiparallax mirror scale; Desk stand with 4mm terminals at the front; Overall Size about 110x80x80mm.
Square: Unbreakable, moulded, ABS Plastic Black Case with clear transparent front window; Accuracy ?2.0 FSD; Scale Length about 65mm with knife edge pointer, with or without anti-parallax mirror scale; Desk stand with 4mm terminals at the front; Overall Size about 120x80x85mm.
Rectangular: Unbreakable, moulded, ABS Plastic Black Case with clear transparent front window; Accuracy ?2.0 FSD; Scale Length about B5mm with knife edge pointer, with or without anti-parallax mirror scale; Desk stand with 4mm terminals at the front; Overall Size about 100x100x140mm
Round, Oesk Stand: Unbreakable, moulded, ABS Plastic Black Case; Accuracy ?2.0 FSD; Scale Length about 50mm with knife edge pointer, with or without anti-parallax mirror scale; Desk stand with 4mm terminals at the top; Overall Size about 90x90x110mm.
Round, Desk Stand with Front Terminal: Unbreakable, moulded, ABS Plastic Black Case; Accuracy ?2.0 FSD; Scale Length about 50mm with knife edge pointer, with or without anti-parallax mirror scale; Desk stand with 4mm terminals at the front; Overall Size about 110x80x75mm.
Rectangular: Unbreakable, moulded, ABS Plastic Black Case with clear transparent front window; Accuracy ?2.0 FSD; Scale Length about 60mm with knife edge pointer, with or without antiparallax mirror scale; Desk stand with 4mm terminals at the front; Overall Size about 110x80x80mm.
Square: Unbreakable, moulded, ABS Plastic Black Case with clear transparent front window; Accuracy ?2.0 FSD; Scale Length about 65mm with knife edge pointer, with or without anti-parallax mirror scale; Desk stand with 4mm terminals at the front; Overall Size about 120x80x85mm.
Rectangular: Unbreakable, moulded, ABS Plastic Black Case with clear transparent front window; Accuracy ?2.0 FSD; Scale Length about B5mm with knife edge pointer, with or without anti-parallax mirror scale; Desk stand with 4mm terminals at the front; Overall Size about 100x100x140mm
Michelson-interferometer
In a Michelson-interferometer a coherent light beam is separated into two rays travelling in different directions by inserting a half-silvered mirror in the path. The separated beams are reflected back along themselves and then recombined. The viewing scree n then exhibits an interference pattern that changes perceptibly when the optical path lengths for each of the split beams are changed by fractions of the wavelength of light. EXPERIMENT PROCE DURE : • Determine the wavelength of a laser. • Determine the refractive index of air as a function of pressure. • Determine the refractive index of glass. • Determine the quality of the surface of a strip of adhesive tape. BASIC PRINCIPLE : The Michelson interferometer was invented by A. A. Michelson originally to demonstrate whether the Earth could be observed to be in motion through an ether in which light was once thought to propagate. His design has nevertheless proved crucial for making interferometric measurements, e.g. of changes in length, thickness of layers or refractive indices. A spanergent light beam is split into two by a half-silvered mirror and the two resulting beams travel along differing paths. They are then reflected back on themselves and recombined so that interference patterns can be viewed on a screen. The resulting pattern is highly sensitive to any differences in the optical paths covered by the split beams. If the refractive index remains constant the degree of change in the geometric paths can be calculated, e.g. changes in size of various materials due to thermal expansion. If by contrast the geometry is maintained, then refractive indices or changes in them due to pressure, temperature or density variations may be determined.
MICROSCOPE, COMPACT, NEWTON RINGS
Specially designed microscope for use in Newton's rings experiment. It is very compact in size and economically priced. It houses an inbuilt lightreflecting unit for the experiment and the lightweight cast aluminum body has provision for positioning the Newton's rings setup. The vertical motion of the microscope through a focusing knob. Horizontal motion along a cast metal carriage with a micrometer at one end for fine adjustment and reading the horizontal position of the microscope with a LC of 0.01 mm. The microscope has working distance and comes with 8x eye piece, Ramsden type with cross line graticule.
MICROWAVE OPTICS KIT
Comprises a 2. Bcm transmitter and receiver and incorporates following features. ? Wave optics in centimeter range ? Demonstrates the properties of electromagnetic waves ? Allows easy demonstration of Interference and Diffraction ? Designed and tested as per EN300-440, and compliant to EN50371 The equipment has been specially designed and developed to demonstrate the various properties of electromagnetic waves, to study the associated phenomena and as an aid to teach the behviour of visible light. The use of microwave permits more comprehensive range of experiments relating to electromagnetic waves, over a wider spectrum of frequencies.
Technical Specifications
Transmitter:
Mode : CW or external modulated, Frequency : 10. 5GHz (Compatible with many existing systems), Average Power : 15mW, Supply Voltage : 5V DC (through external AC mains adaptor unit included)
Receiver:
Mode : CW or Modulated Signal, Frequency : 10. 5GHz (Compatible with many existing systems), Antenna Gain : 17dB
Technical Specifications
Transmitter:
Mode : CW or external modulated, Frequency : 10. 5GHz (Compatible with many existing systems), Average Power : 15mW, Supply Voltage : 5V DC (through external AC mains adaptor unit included)
Receiver:
Mode : CW or Modulated Signal, Frequency : 10. 5GHz (Compatible with many existing systems), Antenna Gain : 17dB
Millikan Apparatus
Specifications : Dimensions: 26 x 20 x 9 cm, Mains supply: 110 V / 230 V, 50 ? 60 Hz. The quantization of electric charge is still as mysterious as it was over 90
years ago when it was discovered by Robert Millikan in his groundbreaking
oil-drop experiment. With this apparatus all the obstacles to the focus of the experiment are removed. The charge of an electron will be measured by observing the rising and falling of latex microspheres in an electric field. LAWS & PRINCIPLES INVESTIGATED : • Electric charge • Air buoyancy • Air viscosity • Reynolds number.
MINI DYNAMICS TROLLEY SET METAL
Die-cast robust metal body incorporating new, compact design. The low friction wheels have inspanidual spring suspension making them retract into the body to protect the trolley from damage due to fall or accidental skateboarding. Two metal locking pins provided at the top of trolley facilitates secure stacking of two or more trolleys to the effective mass 2-3 times its basic mass. The front end of the trolley incorporates a spring loaded exploder plunger with release trigger knob at the top, with the rear end features a clamping screw for attaching tape of ticker timer. Velcro fixed at the rear end for studying inelastic collisions.
MINI DYNAMICS TROLLEY SET PLASTIC
A pair of single piece moulded body made of unbreakable ABS having easily snap-in and removable wheels. Each trolley comes with provision for attaching spring steel bumpers, included with the set. The top of trolleys has recessed rectangular well for accommodating weights to increase the effective weight of the trolley.
MINI MOTOR
A low voltage DC motor mounted on plastic casing
MIRROR SUPPORT BLOCK, WOODEN
Simple wooden block of rectangular cross-section with slot at the center along its length to vertically mount plane rectangular mirrors. Specially designed for PLANE MIRRORS, GLASS, UNMOUNTED but equally suitable for the other similar mirrors in the range.
Mixing Calorimeter
Specifications : Size: 12 x 20 cm (dia. x height), Weight: approx. 250 g. Ideal apparatus for simple experiments in thermodynamics. The Mixing Calorimeter is used for the study of heat characteristics of masses. The apparatus has been insulated from the surrounding environment with a felt cover in order to perform experiments in a state of thermal equilibrium. COMPONENTS : • Copper Calorimeter, • Lid with Stirrer • Thermometer (-10 ? 110?C). LAWS & PRINCIPLES INVESTIGATED : • Determination of the water equivalent of a mixing calorimeter • Specific heat of bodies • Time constant of a thermometer.
MODEL OF OPTICAL INSTRUMENTS
Demonstrates the working and optical arrangement of simple optical instruments. Complete with lenses, mounted vertically on the board with . ray diagram printed to give an idea of their working.
MOLECULAR MOTION DEMONSTRATION TUBE
For demonstration of kinetic theory of matter. Straight tube filled with small glass beads and mercury under highly evacuated condition. When heated on spirit lamp, the mercury boils quickly due to low pressure, agitating violently, imparting bombarding motion to glass beads simulating the Brownian motion with glass beads as gas molecules contained in an enclosed vessel, easily observable to naked eyes
Moment of Inertia Apparatus
Specifications: disks diam. 36 cm and 20 cm – Rod lenght 65 cm. The Moment of Inertia Apparatus allows students to verify the laws of the moment of inertia. Discs of different masses and hollow cylinders, can be mounted on a low friction system in order to perform qualitative and quantitative Observations. components : • Graduated Rod • Air Cushion • Differential Pulley (demountable) • Aluminium Disk (diam. 360 mm) (2x) • Aluminium Disk (diam. 200 mm) • Pair of Hollow Cylinder, 40 g each • Pair of Hollow Cylinder, 20 g each • Plastic Disk • Cylindrical Masses 50 g with Pin (8x) • Massholder (overall mass 100 g) • Low friction pulley • Polyester string • Air Blower • Voltage Regulator for Air Blower • Swivel bosshead • Clamp (2x) • Support Rod. LAWS & PRINCIPLES INVESTIGATED : • Disk’s moment of inertia, experimental approach and theoretical approach • Eddy currents and magnetic friction • Friction’s moment • Hollow cylinder’s moment of inertia, experimental approach, theoretical approach • Moment of inertia, experimental approach and theoretical approach • Parallel axis theorem.
MORSE KEY
To demonstrate the functioning of telegraphic communication. Tapping of the key sends signal to the sounder. On rectangular wooden base with two terminals and pivoted contact arm with adjustable spring, all fittings are chrome plated. 4mm socket terminal provided for connections.
MORSE KEY AND SOUNDER COMBINED
The complete unit, when connected to a similar unit provides complete two way communication in the form of Morse codes. Provided with two pair of terminals - one pair marked '+' and '-' for battery connections and other marked 'L l' and 'L2' for connection to similar terminal on another unit. Mounted on polished wooden base.
MORSE SOUNDER
Receives communication from Morse key and converts into audible signal for decoding. On rectangular wooden base with electromagnet and pivoted arm with adjustable screws, all fitting are chrome plated. 4mm socket terminal provided for connections
MOTOR ACCESSORY SET FOR DISSECTIBLE TRANSFORMER
Demonstrates t;he effects of eddy currents and the principle of shaded pole motor when used with the Dissectible Transformer. The set consists of a pair of soft iron pole pieces, which are located on top of the arms of U-core; a vertical support rod tt.lat fits on top of the pole pieces and has two transverse holes with tightening screws; an aluminium circular disc; one plain. quadrant shaped aluminium plate and one slotted quadrant shaped aluminium plate for eddy current demonstration; a pole shading piece; and a circular shaft that fits into the holes of vertical support rod and locates the quadrants and disc at its other end permitting their free rotation along its axis.
MOTOR CONSTRUCTION KIT, WESTMINSTER TYPE
Contains components to construct six motors, Kit has components similar to 'Westminster' electromagnetic kit and comprises of Anisotropic Ceramic Ferrite Magnets 12 Nos, Armatures 6 Nos., Mild Steel Yokes 12 Nos, Support Bases 6 Nos, Shafts 6 Nos, Rivets 24 Nos, Split Pins 12 Nos, PVC tinned Copper Wire 1 Reel, Cello tape Roles 2 Nos, Insulated Tubing, 2.5mm Bore 30cm
MOTOR MODEL, DC 3 POLE
Open type. demonstrates the working of a simple DC motor. Operates on 4-6 volts DC, with pulley mounted on shaft. Complete assembly mounted on base.
MOTOR MODEL, OPEN TYPE, WITH NEWTON'S COLOUR DISC
Open type simple DC motor showing conversion of electrical energy into mechanical energy. Mounted on wooden base, works on 4-6 volts DC. With Newton's colour disc attached vertically to the motor shaft.
Motor Unit
Specifications : Dimensions approx. 12 x 12 cm, Electrical supply: 4-6 V DC or AC. LAWS & PRINCIPLES INVESTIGATED : • Motor spinning • Dynamo • Interaction between currents and magnetic fields.
MOTOR, OPEN MODEL
Large size, mounted on base. Open construction shows the working of a 3pole DC motor with easy identification of the parts. Works on 4-8 volts DC. Armature wound with enameled copper wire on insulated plastic bobbin and rotates between two curved iron strips. Field provided by an electromagnet mounted below the armature
MOUNTED BULB
A low voltage light source mounted on base for operating through solar cell.
MOUNTED BUZZER
An audible buzzer operates on low voltage DC. converts electrical energy to sound energy.
MOUNTED MOTOR FOR SOLAR CELL
Comprises small, low power consumption, electric motor mounted on a base, specially designed to run directly from the output of the solar cell and to illustrate the direct conversion of light energy to electrical energy and then to mechanical energy. The motor spindle can spin a small fan,
about 50mm diameter, when powered by the solar cell. For use with the motor to demonstrate the production of electrical energy directly from light energy. The solar cell unit comprises a selenium photo-voltaic cell housed in a plastic case with a rectangular diffusing lens top of size 25 x 25mm. 80th units provided with colour coded 4mm sockets for connections.
Mounted on stand, with ball suspended from U-shaped bent rod, mounted on cast metal base
Similar to RING & BALL but both ball and ring mounted on retort stand through a vertically adjustable collar, with ball suspended above the ring through a chain. Ball diameter 25mm.
MOUNTED RESISTANCE COILS
A useful apparatus for showing how resistance varies with the type of wire, length of wire and. diameter of wire in coils. The apparatus can be used with wheatstone bridge or a suitable ohm-meter. Lengths and diameters of wires are in two to one ratios to simplify computations. A set of five collinear coils wound on identical bobbins and mounted on anodized aluminium sheet with six 4mm sockets to facilitate electrical connections.
MOVING COIL METERS
For DC measurements are designed to meet every need of schools, colleges and technical institutions, All meters are housed in moulded dust proof cases with provision for zero adjustment. Ranges available in both center zero as well as left zero. The meters are available in following sizes and shapes.
MULTI RANGE AMMETER VOLTMETER COMBINED, DC
A multirange meter with transparent, square front panel mounted on a sturdy plastic case, incorporating a unique switching system for selecting ammeters or voltmeters ranges both internally and externally by a slider mechanism. The mechanism automatically covers the measurement
not in use and opens the desired measurement eliminating any chance of damage to the equipment by error and displays the selected measurement on the meter. The moving coil mechanism is adjustable for zero and also provides negative reading to the left of zero for both measurements. Different ranges in both the measurements selectable through various 4mm socket terminals mounted on top clearly indicating the range, with a common terminal just below the meter. Ranges available are Ammeter: 100/lA, 100mA, 1 A and 5A & Voltmeter: 100mV, 1 V, 10V, 50V.
Multiple Pendulum Apparatus
Specifications - Size: 104 x 30 x 35 cm – Weight: approx. 2 kg. Understanding the Laws of the Pendulum. This apparatus has been developed for the specific purpose of studying the Laws of the Pendulum. Using a set of spheres of different masses we can demonstrate the how influential mass can be on a pendulum system. The apparatus can also be used to measure gravity and acceleration. COMPONENTS : • Polyester inelastic String • Multiple Pendulum Apparatus Stand • Set of four Brass Spheres with Hook • Set of four PVC Spheres with Hook • Set of four Wood Spheres with Hook. LAWS & PRINCIPLES INVESTIGATED : • The Laws of the Pendulum • Determination of the acceleration due to gravity.
n-p-n TRANSISTOR
Comprises an n-p-n junction bipolar transistor mounted in the plastic casing. useful for studying the transistor characteristics and its functioning in different circuits.
Neodymium-Iron-Boron Magnet
Specifications : Material: NdFeB – Size: 2.5 x 0.5 cm (dia.x height). Face-polarised disc shaped magnets. May be used for many magnetic demonstrations where intense field strength is an important criterion. Protected against corrosion and can be used up to 80 ?C; are not suitable in situations involving impact or significant vibration.
Newton’s Disk
Specifications : Size: 20 x 30 x 12 cm – Weight: approx. 1 kg – Mounted on base. The Newton’s Disk consists of an aluminium platform with coloured segments printed on it. The colours represent the primary colours of the spectrum (red, orange, yellow, green, blue, indigo and violet). When the disk is rotated, the colours blur together and the eye, unable to respond rapidly enough, sees the colours mixed together to form white. Since the eye is more sensitive to colours in the middle of the visible spectrum, the wedges with yellow and green often become narrower, while those for red and violet become wider. When the disk is rotated, the colours fuse together resulting in the effect of “white light”. LAWS & PRINCIPLES INVESTIGATED : • Colour mixing • Human perception of colours.
Newton’s Tube
Specifications : Size: 5 x 105 cm (dia. x height) – Weight: 0.7 kg. A falling body is independent of its mass and shape. Using Newton’s Tube we can Demonstrate the independence of mass and shape of a falling body. The apparatus consists of a vacuum tube containing a feather and a piece of metal. We can visually demonstrate both bodies falling together inside the evacuated tube. LAWS & PRINCIPLES INVESTIGATED : • Free fall motion in vacuum.
NEWTON'S COLOUR DISC, MOUNTED ON MOTOR
For demonstrating that white light is composed of all the spectral colours through the additive mixing of the colours. Comprising a multicoloured circular disc of about 80mm diameter, having sectors of various spectral color in proper proportions, mounted on a low voltage DC motor. On rotating the disc, all the colours are observed to disappear by merging into a single white colour. Provided with colour-coded wires terminating in 4mm banana plugs, connected to the motor for power input.
NEWTON'S COLOUR DISC, ON BENCH CLAMP
Similar to NEWTON'S COLOUR DISC, ON STAND but 200mm Newton's colour disc assembly mounted on a bench clamp stand
NEWTON'S COLOUR DISC, ON STAND
For demonstrating that white light is composed of all the spectral colours through the additive mixing of the colours. Comprising a multi-coloured circular disc having sectors of various spectral color in proper proportions. On rotating the disc at sufficient speed, all the colours will be observed to disappear by merging into a single white colour. The disc has a friction pulley at the back touching the driving wheel with a handle. Complete assembly mounted on a stable base.
NEWTON'S RINGS APPARATUS
A simple and economical apparatus for the study of Newton's Rings. Comprises a pair of glass plate, optically polished, about BOmm diameter, one plane the other slightly plano-convex mounted together in ring shaped frame. Pressure between the two glass plates adjustable by three spring-loaded screws.
NEWTON'S SECOND LAW OF MOTION APPARATUS
A complete piece of instrument demonstrating the Newton's Second Law of Motion. Comprises a spring loaded steel rod mounted in two brackets on a metal base. Also includes one solid steel sphere and one steel sphere with a hole to slide it into the rod. Complete with a rod mounted on the base for fixing the apparatus on a suitable retort stand. Spring compressed by the handle which can be locked into two different positions corresponding to two potential energy levels. Once spring is compressed, the sphere with the hole slides onto one end of the rod, while other is placed in a small recess on the opposite side of the base. On releasing the handle, the potential energy of the compressed spring imparts horizontal velocity to the solid sphere while the other sphere simply falls vertically. Falling of both the spheres on the ground implies that vertical and horizontal velocities are independent.
NEWTONIAN DEMONSTRATOR OR COLLISION BALLS
Dramatically illustrates Newton's third law of motion and works well on an overhead projector. Its graphical demonstration of elastic collisions qualitatively, is far superior to any other device on account of its size and total absence of friction. The unit is completely assembled and consists of a frame with six plated steel balls of 19 mm diameter, suspended on the frame through lightweight cord. By pulling and releasing the different number of balls, collision results among the balls can be observed to draw many interpretations.
NEWTONIAN DEMONSTRATOR OR COLLISION BALLS
Dramatically illustrates Newton's third law of motion and works well on an overhead projector. The visual demonstration helps students understand concepts such as collision between equal mass bodies, exchange velocities. kinetic energy and momentum etc. Its graphical demonstration of elastic collisions qualitatively, is far superior to any other device on account of its size and total absence of friction. The unit is completely assembled and consists of a frame with five plated steel balls of about 19mm diameter. suspended on the frame through lightweight cord. By pulling and releasing the different number of balls. collision results among the balls can be observed to draw many interpretations.
NEWTONIAN DEMONSTRATOR OR COLLISION BALLS METAL FRAME
Dramatically illustrates Newton's third law of motion and works well on an overhead projector. Its graphical demonstration of elastic collisions qualitatively, is far superior to any other device on account of its size and total absence of friction. The unit is completely assembled and consists of a frame with six plated steel balls of 19 mm diameter, suspended on the frame through lightweight cord. By pulling and releasing the different number of balls, collision results among the balls can be observed to draw many interpretations.
