SEARL’S SURFACE TENSION APPARATUS
PHY-00623
To determine the surface tension of liquids. Comprises a metal bridge attached to a vertical rod, which in turn is mounted on pillar of a heavy cast metal stand adjustable for height and has leveling screws supplied with rectangular wire frame, slide clip, six micro slides and spare length of torsion wire.
RISING TABLE
PHY-00615
For determining the surface tension of liquid by capillary rise method The apparatus comprise metal frame, on which four capillary tubes of 10cm. long and of different internal diameters are clamped with the help of small metal brackets. The 9 mm. rod is also attached to metal plate, so that complete clamp can be held in any stand. Consisting a cast aluminium 100 mm dia table with adjustable stand.
RIPPLE TANK LED ILLUMINATION
PHY-00612
This compact unit provides an elegant method of demonstrating the wave phenomenaof reflection, diffraction, refraction and interference with none of the setting-up problemsusually associated with ripple tanks. The concept has been developed to offer newfeatures in this design. A 10cm tank on a base unit provides the wave generatorand light source to project wave images on to the translucent screen which can then beviewed from above. The LED light source has been upgraded to give super-brightimages and can now be controlled independently of the wave generator. Three settingsgive light ON, SYNC and FREE. Sync has wave frequency synchronized to lightfrequency to give perfectly stationary images. Free gives independent control of thelight frequency to give slowly moving images. Supplied with a full set of interchangeable dippers, barriers, refraction plates and plug top power unit.
RIPPLE TANK
PHY-00614
Ripple tank is a device to illustrate the laws of wave phenomenon-using ripples on the surface of water as the prototypes of all transverse waves. Ripple tank illustrates important wave motions like rectilinear and circular. It can also demonstrate refraction, diffraction and interference of water waves. Tank is supported by four legs having leveling screws. supplied complete with ripple assembly, two straight obstacles , one straight obstacle , curved reflector, transparent refraction plate, wooden wave roller, one pack of rubber bands, water dropper, sponge, illuminator, electrically operated.
RHEOSTAT SLIDING CONTACT
PHY-00605
Comprising a layer of resistance wire wound on an insulating heat resistance porcelain tube, supported by sturdy feet both side, sliding contact and three socket terminals are provided. Tube dia 43 mm Maximum Amperes                               Maximum Ω                           Tube Length PHY-00605/1         0.8                                          160                                         150 mm PHY-00605/2         1.6                                          50                                           150 mm PHY-00605/3         6,5                                          4.4                                          200 mm PHY-00605/4         4.2                                          12                                           200 mm PHY-00605/5         0.8                                          240                                         200 mm PHY-00605/6         0.3                                          1700                                       200 mm PHY-00605/7         5.0                                          11                                           300 mm PHY-00605/8         4.2                                          20                                           300 mm PHY-00605/9         3.3                                          27                                           300 mm PHY-00605/10       2.3                                          56                                           300 mm PHY-00605/11       0.3                                          2850                                       300 mm
RHEOSTAT SINGLE TUBE PROTECTED
PHY-00608
Enclosed type in metal case with wounded with oxidized resistance wire, with 4 mm socket terminals
Resistance Ω                          Current Ampere
PHY-00608/1Â Â Â Â Â Â Â Â Â 10Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 4Â Â Â Â Â Amp.
PHY-00608/2Â Â Â Â Â Â Â Â Â 33Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2.2Â Â Amp.
PHY-00608/3Â Â Â Â Â Â Â Â Â 100Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 1.25 Amp.
PHY-00608/4Â Â Â Â Â Â Â Â Â 330Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0.7Â Â Amp.
PHY-00608/5Â Â Â Â Â Â Â Â Â 1000Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0.4Â Â Amp
RESONANCE APPARATUS
PHY-00602
Consists of a resonance tube brass N.P. 100 cms, reservoir brass N.P. 250ml & meter scale both sides millimeters, which are mounted on wooden polished board. The reservoir is caged in a wooden block that has sliding & clamping arrangement on the board. The board is mounted vertically on heavy metal base with synthetic hammer finish with leveling screws. Complete with rubber tubing.
RESISTANCE BOX PLUG TYPE NEW PATTERN
PHY-00594
Precision quality consisting of thick rectangular brass block, non-inductive, double covered Eureka Constantan wire is wound on Bakelite spool, enclosed in a Plastic case. Accuracy ±0.1% Range in Ω PHY-00594/1         1-100 PHY-00594/2         1-500 PHY-00594/3         1-1000 PHY-00594/4         1-5000