You searched for: Physics Educational Materials

Supplier: DIDALAB

Educational Materials, Optics, Application: Physics, Diode laser, red, Class II

Supplier: DIDALAB

Educational Materials, Optics, Application: Physics, Polariser, calibrated, set in an M49 ring

Supplier: Thermo Fisher Scientific

Replace metal-type troughs with the polypropylene pneumatic trough.

Supplier: DIDALAB

Educational Materials, Optics, Application: Physics, Translucent screen 20×20 cm, attached to a rod with Ø 10 mm

Supplier: DIDALAB

The diameter of the beam is adjustable from 1 to 12 mm.

Supplier: DIDALAB

Economical, recent design of prismatic optical bench

Supplier: DIDALAB

Extremely luminous beam, ideal for classroom experiments. Class IIIa (5 mW Power)

Supplier: DIDALAB

Triangular, cast aluminium optical bench

Supplier: DIDALAB

These wide diameter lenses are used for easy classroom experiments and for aberrations underscoring.

Supplier: DIDALAB

Prism made of standard optical glass with index near to 1,52. Equilateral dispersing prisms are used for wavelength separation applications. Intended for demonstration experiments of light dispersion.

Supplier: DIDALAB

High quality professional gas laser, Class II

Supplier: DIDALAB

This comprehensive optical pack allows you to implement and study the basic principles of polarisation of light.

Supplier: DIDALAB

Optical glass components are manufactured with high accuracy polishing and flatness tolerance.

Supplier: KVANT LIFE SCIENCE

Educational Materials, Optics, Application: Physics, Hartl's optical disc with laser

Supplier: OSRAM

Equipment for demonstrating photoelectric power and determining Planck's constant. A photocell is equipped with filters that only transmit light of a certain wavelength. The photocell is illuminated with light from a Hg lamp. The potassium cathode then emits electrons that pass over to the unlit anode. Over time, a voltage arises that prevents new electrons from reaching the anode. The resulting voltage is measured with a measuring amplifier and a voltmeter. The measurement is repeated with filters for different wavelengths. Photocell and Hg lamp are equipped with magnets at the bottom for stable installation on the mounting plate. List of equipment:

Supplier: LUNDGRENS MASKINF═RN═DENHETER

Educational Materials, Electricity/Magnetism, Application: Physics, Rubber cloth, 150 × 150 mm

Supplier: ELWE LEHRGERAETEBAU KLINGENTHA

Franck-Hertz's experiment is one of the best ways to show the quantum properties of atoms. The experiment verifies the excitation energy of the Hg atoms through collisions with free electrons. Franck-Hertz tubes consist of an oxide cathode, gallery anode and a collection electrode. The evacuated tube contains a drop of Hg. Before starting the measurements, the pipe must be heated to 200 °C, partly to increase the pressure of the Hg steam and partly to obtain a sufficient probability of collision. When the temperature in the tube has become constant, the cathode is heated and a direct voltage which can be varied in the range 0 to 50 V is connected between the cathode and the anode. When the counter voltage is set to about -1,5 V and the anode voltage increases slowly from 0 V, the electrons will soon reach speeds in the acceleration range of the tube so that an increasing part of the primary current reaches the collector electrode. As the velocity of the electron flux approaches the lowest excitation level of the Hg atoms (4,9 eV), the electrons of the Hg atoms are capable of leaving the atoms and thus losing some of their velocity. The collector current drops to a minimum value. The Hg atom then emits its 253,7 nm ultraviolet line and then returns to its normal energy level. As the acceleration voltage increases further, the current reaching the collector electrode will increase again. This process is repeated periodically many times.

Supplier: IMBE HANDELSBOGALET

Black plastic top with transparent pattern. Consists of four differently colored circular surfaces in the corners of an imaginary square and one uncoloured at the intersection of the diagonals.

Supplier: KVANT LIFE SCIENCE

Laser type: Diode, Wavelength: 635 nm.

Supplier: KVANT LIFE SCIENCE

Equipped with key switch. Wavelength: 532 nm; (4×
2 mm).

Supplier: ELWE LEHRGERAETEBAU KLINGENTHA

Used e.g. to form homogeneous magnetic fields. Two identical coils placed in parallel by means of three fastening devices. The coils can be connected in series or in parallel. To determine e/m, the wire beam tube is placed between the Helmholtz coils in such a way that the visible beam is perpendicular to the homogeneous magnetic field. The generated magnetic field can be measured with a magnetic field meter with hall elements. Specifications.

Supplier: KVANT LIFE SCIENCE

Equipment for demonstration of geometric optics with laser on magnetic board. With the equipment, a variety of optical phenomena can be demonstrated. Thanks to the light intensity of the laser, the beam path can be monitored through a combination of several lenses. The equipment consists of.

Supplier: KVANT LIFE SCIENCE

Laser light source for mounting on magnetic board (white board or similar). Can be used to advantage in combination with picture optics (765-1009).

Supplier: IMBE HANDELSBOGALET

Lens made of silicone rubber, mounted in a screen. The shape can be varied steplessly from convex to concave by changing the water volume in the lens. If an object is placed in front of the lens, the object can be projected on a posterior screen (retina). The focus is adjusted with the volume of water in the lens.

Supplier: KVANT LIFE SCIENCE

New optical models for laser optics (15 parts). Consists of.

Supplier: KVANT LIFE SCIENCE

A set of optical and mechanical elements that are designed to demonstrate the principles of optics using a coherent laser light source. Students will be helped in their understanding of polarised light, diffraction and interference allowing them to reconstruct a holographic image.

Supplier: KVANT LIFE SCIENCE

Light box with five parallel-mounted laser diodes (wavelength 635 nm). The diodes are equipped with a collimator and a 5 mm cylindrical lens, which means that the beam path can be followed before, through and after the lens as five sharp and clearly visible, parallel light beams.

Supplier: KVANT LIFE SCIENCE

Equipment for laser sound transmission experiments. The included microphone, tape recorder or function generator is used as the sound source. The rate consists of.

Supplier: ELWE LEHRGERAETEBAU KLINGENTHA

For examination of the deflection of the electron beam in a magnetic field. Particularly suitable for determining e/m in a homogeneous magnetic field generated by Helmholtz coils. Spherical glass flask containing i.a. an electron gun with indirectly heated cathode and anode with holes. The glass flask is filled with neon of low pressure. The gas atoms are ionized by the electrons and are thus excited so that light can be emitted. Therefore, a visible luminous beam is formed along the path of the electrons.

Supplier: ELWE LEHRGERAETEBAU KLINGENTHA

The exercise oscilloscope is placed at the Helmholtz coils so that its main axis coincides with the axis of the coils. A sawtooth-shaped voltage is applied to the deflection plates of the oscilloscope so that a smooth horizontal line appears on the screen. Let direct current pass through the coils at a preset anode voltage and adjust the intensity of the current so that the line is focused at one point. The specific charge e/m of the electron can be calculated from the measured values ​​of the anode voltage and the current through the coil.