optical bench double rod improved design .for advance research works consists of two rods of iron metal supported by heavy cast iron rod holder,4 heavy cast iron slidersfull shaper and good motion.
A plastic rod is charged by rubbing with cloth. The charged rod is brought close to the pith ball without touching it. It is observed that the charged rod weakly attracts the pith ball. This may be surprising – and you are right to be surprised, for the pith ball carries no charge.
Profile Projector 300mm dia 360 Degree rotatable graduated screen with venier & 90Degree cross line providing high accuracy of linear and angular measurements, providing Illumination of contour lamp12v /100w andsurface(12v/35w) lamps with four standard magnifications.
The projection of micro-slides can be observed by a group of students on a round screen of 150mm diameter. Microscope is equipped with triple revolving nosepiece, coarse and fine motion knobs. Bulb Halogen 6V-20 Watts. Built-in base transformer, solid-state, variable. Complete in carrying case.
Ach. Objectives : 4x, 10x & 40x SL
Huy. Eyepiece : 10x
Resistance box 1 to 1000 plug type ,resistance box is to control the specific valvue of current to fiow through the circuit.resistance values are adjusted by removing the brass pegs.this box used as a standard resistance in laboratory work in schools.
Hold the ball over the flame for a few seconds, rotating it, and then pass the ball through the ring. Place the ball over the flame again for a few seconds, rotating it. You will see than now the ball can't go through the ring. Place the ball inside the beaker with water and now try to pass the ball through the ring.
the microtome is used to make thin slices of tissue (usually 4 μm but can be 2–10 μm). The cut tissue is floated over a water bath, in order to eliminate wrinkles and distortion in the tissue, and picked up on a slide.
A spectrometer is any instrument used to probe a property of light as a function of its portion of the electromagnetic spectrum, typically its wavelength, frequency, or energy. a spectrometer can function over any range of light, but most operate in a particular region of the electromagnetic spectrum.
The spring constant of a spring can be found by carrying out an experiment. The unloaded length of a spring is measured. Slotted masses are added to the spring. Record each stretching force in N and the corresponding length of the spring. The extension is the new length minus the unloaded length.
stereo microscope with 2x,4x dual objactive lens,10 x w/f eye piece ,dual led light,binocular head moving 360 degree . total magnifiction 20x,40x. PACKING IN BOX
Student stereo microscope with 2x objective lens, and 10x Wilde field set ,total magnification 20x ,metal used aluminium with powder coating, 1slide motion working by rack pinion with knob.
The bed is of cast iron and accurately machined. The horizontal carriage is machined and inters ground on the guide ways of the horizontal bed. The carriage is fitted with vertical brass pillar carrying a microscope tube on a ground fitted vertical carriage. The base is fitting with two levelling screws Horizontal scale is 20cms and vertical 15cms. Long. Both the horizontal scale and vertical carriages are provided with slow motions, which travels app. 3cms in one traverse. Microscope tube is provided with rack & pinion. A milk white Perspex platform is provided on the horizontal bed. Vernier constant 0.001cms. Complete in well-polished wooden case.Having stainless steel scale.
Tuning forks, typically aluminum, consist of a stem (handle) and two prongs that form a U-shaped fork . The tuning fork vibrates at a set frequency after being struck on the heel of the hand and is used to assess vibratory sensation and hearing air conduction and bone conduction.
