The instrument consists of two - round scales. One with index and the other with vernier. The first scale (index scale) is for tuning the analyser into the azymuth . T h e Second scale ( Vernier Scale)isformeasuring the degree of orientaon of awedge box. The Wedge Box contains two wedges cut in mutually perpendicular direcon of opcs axis in quartz. The long wedge is movable by means of a micrometer drum, with the help of which accurate reading of the movement is taken. Micrometer screw minimum reading 0.001cm. (i.e. Least count)
Clear acrylic plastic blocks about 20 mm thick with all surfaces polished. All components available as separate parts as well as collection of all components in set form. Various blocks (shapes and sizes) available are
LO-6448Â Rectangular Block, 75-50 mm
LO-6448Â Right Angled Prism, 90x45x45, 75 mm hypotenuse
LO-6448Â Equilateral Prism, 60x60x60, 57 mm side
LO-6448Â Semi-circular Block, 75 mm diameterÂ
LO-6448Â Bi-convex Block, 75 mm long. Curved face of about 115 mm radius
LO-6448Bi-convex Block, 75 mm long. Curved face of about 145 mm radius
LO-6448Â Bi-concave Block, 75 mm long curved face of about 115 mm radius
LO-6448Â Set of Seven Blocks, one each of the above components, nicely packed in velvet lined wooden case
LO-6448 Set of Six Blocks, one each of the above components, nicely packed in velvet lined wooden case
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 The Newton disc, also known as the Disappearing Colour Disc, is a well-known physics experiment with a rotating disc with segments in different colors (usually Newton's primary colors: red, orange, yellow, green, blue, indigo, and violet or (ROYGBIV) appearing as white (or off-white or gray) when it spins very fast.
A circular black colour disc with a white segment mounted on the axle of a low voltage motor fitted inside a plastic moulded case (142x80x40) mm approx. Operating voltage for the motor is 6V DC applied via. 4mm colour coded sockets. The speed of the motor may be varied with the help of the potentiometer fitted on outer side of the plastic case.
Ideal for student experimentation in simple optics involving the basic pin hole camera. Other optical effects such as image inversion, effect of aperture size on depth of field and quality of image etc., can also be explored. The standard pack is sufficient for 8 students and consists of the following items.
8 cardboard boxes 150 100 100mm with hole, screen and lid
 50 sheets of black paper 200 250mm
One 200W lamp
One mounted lamp holder with flex
One packet of pins.
No more burnt finger, this LED Ray box housed in a tradional diecast enclosure uses the latest ultra bright LED technology giving a superior white light with a 10000 hour life. Supplied complete with slit plate. Collimating lens and mains power adaptor.
Features:
Ultra cool - temperature
Long life LED - rated 10000 hours
White light closer to real sun lightÂ
 Equal in power to most convenonal 24W Ray boxes
Rays are more connuous and of uniform intensity
Complete with power adaptor, Lens and Slit Plate
Useful for studies of fundamental principles of optics using ray tracing technique. Comprises a well painted, die-cast metal box with an enclosure that houses electric bulb for use as a light-source in the experiments. Open front of the bulb enclosure with holes all around the bulb holder and extended sidefins on the outside of the enclosure assist in the heat dissipation of the bulb. The integral side-rails provided with a set of vertical-grooves on inner side for accommodating various 45mm wide mountings such as slit plate and cylindrical lens. The 12V bulb with vertically straight filament, mounted in SBC bulb holder with a two core flexible connecting lead terminating in a pair of 4mm banana plugs for connecting it to low voltage AC power source. Additional slots permit the mounting of other accessories or components such as color filters for added experiments in ray optics. Supplied complete with slit plate, double ended single/triple but without collimating lens
Kit develops the creative mind of student and clear the theoretical concept related to the light, creation of rainbow from sunlight, straight line propagation, transparent and opaque materials, reflection and refraction, images formed by lens, colours and the spectrum. Kit consists of three wooden V shape lens holder, a white screen, two plane mirrors, a glass sheet, a plastic beaker, two prism, two lens/mirror supports, a flashlight, a candle, five set of color filter two convex lens, a concave lens and a plano convex lens
Compact in size, inexpensive, lightweight with low power consumption diode laser is housed in a plastic moulded case (90x90x42) mm approx., qualitatively used for ray optics demonstration and simple diffraction work as well as to indicate the points on overhead images and charts. It required three button cells to project visible red spot with a sharply focused beam of wavelength (630-680) nm with only 1mw power consumption.
Set of optical components supplied along with light box, available as spares
LO-6304Â Set of 5 Acrylic Blocks (Prisms): one each of rectangular, semicircular, equilateral triangular - 60 60 60, triangular 90 60 30 and right angled triangular 90 45 45
LO-6304Â Set of 3 Acrylic Cylindrical Lenses: one double concave, one double convex (both having same radius of curvature) and one thick double convex
LO-6304Â Set of 3 mirrors: one each of parabolic, semi-circular and plane glass (mounted on stand)
LO-6304Â Set of 2 slit plates, black: one with three narrow slits and one narrow at either end, and other with four narrow slits and one wide slit at either end
LO-6304Â Set of primary colour filters: one each of red, blue and green.
LO-6304Â Set of secondary colour filters: one each of cyan, violet, orange, yellow and magenta
LO-6304Â Set of 8 Coloured Cards: one each of red, blue, green, violet, orange, cyan yellow and pink.
Demonstrates the basic principle of the diffraction grating and for exploring the dependence of its properties on its resolution (lines per unit length). Comprises a set of 3 grangs -100, 300 and 600 lines/mm, mounted on a single slide card mount with three apertures of 16-9mm, one for each resolution, which is clearly marked below each aperture. With protective coating.
A square section steel tube 25x25x430mm for carrying out an experiment in level gauging, basic scarring, absorption and parcel deflection in the magnetic field, etc. There is a raise 40cm scale graduate in millimeters along the front of the bench. There are also three magnetic molded plastic bench mounts with a 3mm slide slot to hold a range of absorbers or source holder. Two aluminum source holders are also provided, the large of which has three collinear 4mm holes to accept mounting pegs of standard sources. Complete with a full circular paper protractor and two bulldog clips.
A metallic circular disc graduated (0-90) in four quadrants and subdivided into 1. A transparent acrylic semi-circular tank is fitted on the metallic disc to find out the refractive index of different liquids e.g. water, kerosene, oil, etc. All this assembly is fitted on a metallic base which is graduated from 1-7 to place the lightbox at any desired level.
A set of 500 cubes each of dimensions 1 cm 3 packed in a plastic box to avoid any chance of misplacement. One face of each cube is black colored. On throwing the cubes, it will represent atomic nuclei, to see how many decays during each throw. Decayed nuclei are removed prior to the next throw. Satisfactory results is obtained for an exponential decay curve without the hazards of radioactive material.
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