Shop
Showing 3457–3472 of 6648 results
-
Magnetism & Electromagnetism, Physics
Lenz Law, Mechanical
Catalogue No: 1070850/1
Lenz’s Law apparatus is a simple and effective way to demonstrate electromagnetic induction and Lenz’s Law of electrodynamics. The metal loopes (one open and one closed) can move freely on a centrally mounted pin. On introducing magnetic field in the closed loop, it induces electric current and a resultant magnetic field that opposes the introduced magnetic field. Which can be observed from the moving fo the closed loop away from the magnet. No such phenomena is observed with the open loop.
* Lenz LawPack of (Pcs): 1
SKU: 1070850/1 -
Heat, Physics
Leslie’s Cube
Catalogue No: 1061080/1
Useful for qualitative activities in thermal radiation. The results can also be quantified using a suitable radiation sensor facilitating investigation of emission and absorption of radiation from different surfaces at a same temperature or radiation from a single surface at different temperatures (Stefan-Boltzman’s Law). Comprises a sheet metal cube of sides about 130mm with opening at the top for pouring in water and inserting a thermometer through a holed rubber stopper. Each of the four vertical faces is finished black, varnished, roughened and polished.
* Leslie’s Cube, Economy, Made of Tin PlatePack of (Pcs): 1
SKU: 1061080/1 -
Heat, Physics
Leslie’s Cube
Catalogue No: 1061080/2
Useful for qualitative activities in thermal radiation. The results can also be quantified using a suitable radiation sensor facilitating investigation of emission and absorption of radiation from different surfaces at a same temperature or radiation from a single surface at different temperatures (Stefan-Boltzman’s Law). Comprises a sheet metal cube of sides about 130mm with opening at the top for pouring in water and inserting a thermometer through a holed rubber stopper. Each of the four vertical faces is finished black, varnished, roughened and polished.
* Leslie’s Cube, Superior, Made of CopperPack of (Pcs): 1
SKU: 1061080/2 -
Mechanics, Physics
Lever Apparatus
Catalogue No: 1030560
A meter rule, graduated in millimeters and reading every centimeter is used as lever with its fulcrum at its center. Fulcrum pivoted on a stand with the meter rule having holes every 25mm apart all along its length. Two hangers included with mounting pins for suspending it from any of the holes on either side of fulcrum and are used for hanging the masses. Supplied with two mass hangers of 100g each.
* Lever Apparatus, WoodenPack of (Pcs): 1
SKU: 1030560 -
Metrology or Measuring Instruments, Physics
Lever Balance
Catalogue No: 2012080/1
The scale is in the form of a quadrant. The index pointer is of edge reading type, specially designed to avoid parallax errors, which permits the viewing of scale from any convenient position. Leveling screw provided for zero adjustment. Once zero is set in any range, no leveling is needed for zero adjustment while changing range since zeros of both the ranges correspond to each other. The detachable top pan is made of CPSS with a hook at its bottom for specific gravity work and suspended weights.
* Dual Range : 0-250g x 1g and 0-1000g x 10g with changeover in range can be done through hinged weight arm.Pack of (Pcs): 1
SKU: 2012080/1 -
Metrology or Measuring Instruments, Physics
Lever Balance
Catalogue No: 2012080/2
The scale is in the form of a quadrant. The index pointer is of edge reading type, specially designed to avoid parallax errors, which permits the viewing of scale from any convenient position. Leveling screw provided for zero adjustment. Once zero is set in any range, no leveling is needed for zero adjustment while changing range since zeros of both the ranges correspond to each other. The detachable top pan is made of CPSS with a hook at its bottom for specific gravity work and suspended weights.
* Single Range: 0-250g x 1gPack of (Pcs): 1
SKU: 2012080/2 -
Mechanics, Physics
Lever Kit, Wooden
Catalogue No: 1030580
For investigation into the concept of moments, principle of lever and balances by a group of up to 8 students using the items included in the kit. Comprises five wooden beams of size about 600 x 44 x 3mm marked every 38mm and a groove on the opposite surface across its center that acts as a fulcrum point. The wooden beam is accurately balanced when its fulcrum point is located on any of the 4 wooden wedges included. Supplied complete with 50 metal blanks of about 25mm square, 40 of Aluminum and 10 of brass.
* Lever Kit, WoodenPack of (Set): 1
SKU: 1030580 -
Electrostatics, Physics
Leyden Jar
Catalogue No: 1080600
For demonstration of the basic principle of capacitance and its use in storage of charge. Comprises an insulated plastic can along with two metal conducting cans one inside the plastic vessel and the other outside, the dielectric plastic can provides complete insulation between the two metal cans. The inner can has a hook shaped metal rod terminating in a metal sphere at the top for charging / discharging the Leyden jar. The apparatus can be easily disassembled and once charged in assembled condition, retains its charge even after assembly and disassembly.
* Leyden JarPack of (Pcs): 1
SKU: 1080600 -
-
-
Optics, Physics
Light and Shadows
Catalogue No: 1110550
Activities those can be performed with this kit.
* Formation of shadows.
* How do shadows change through out the day.
* Does the sun shine from the same direction at the same time each day.
* Earth spins on its axis.
* Do the light pass through each materials.
* Why do we use a mirror.
* Best light reflecting surfaces.
* How can a shadow change.
* Light and ShadowsPack of (Pcs): 1
SKU: 1110550 -
Optics, Physics
Light Box & Optical Set
Catalogue No: 1110740
Enables comprehensive range of optical experiments involving reflection, refraction and colour mixing. The kit designed around a well ventilated light box, consisting a light source of 12V, 36W having vertically straight filament lamp. Incorporates an adjustable collimating lens towards one end for producing convergent, divergent, or parallel light beam, with other end having triple aperture system for colour mixing experiments. Adjustable hinged mirrors along both sides of the box facilitates colour mixing of all three beams. All apertures in the box are provided with vertical channels to hold slits plates and colour filters. A two core flexible connecting lead terminating in a pair of 4mm insulated banana plugs to connect it to low voltage AC power source.
The complete optical set includes:
* Set of 5 Acrylic Blocks (Prisms): one each of rectangular, semicircular, equilateral triangular – 60 Degree x 60 Degree x 60 Degree, triangular: 90 Degree x 60 Degree x 30 Degree and right angled triangular : 90 Degree x 45 Degree x 45 Degree. All blocks are free of optical imperfections and sharp edges.
* Set of 3 Acrylic Cylindrical Lenses: one double concave, one double convex (both having same radius of curvature) and one thick double convex.
* Set of 3 mirrors, highly polished reflecting surfaces and free standing. Includes one each of parabolic, semi-circular and plane glass (mounted on stand)
* Set of 2 slit plates, black – one with three narrow slits and one narrow, and other with four narrow slits and one wide slit.
* Set of 8 colour filters, mounted: 3 primary colours : one each of red, blue and green, and 5 secondary colours: one each of cyan, violet, orange, yellow and magenta.
* Set of 8 Coloured Cards: one each of red, blue, green, violet, orange, cyan yellow and pink.All acrylic blocks and lenses, cylindrical and parabolic mirrors provided with finger grips, enabling their handling without touching their active optical surfaces. The bottoms of all refractive components are frosted to minimize internal reflections and revealing the path of light as it passes through. Supplied complete with a spare bulb with complete set housed in a moulded styrofoam case.
* Light Box & Optical SetPack of (Set): 1
SKU: 1110740
