Digital stroboscopes, or strobes, provide consistent and exact measurements of speed, including stop-motion diagnostic inspection. In essence, strobes are employed to make a cyclically moving object seem to be 'slow-moving' or even stationary.The HHT digital stroboscopes provides reliable and accurate speed measurements as well as stop-m..

A 90mm diameter plastic ball with a PP3 battery powered tone generator and speaker contained within. The ball can be safely whirled round in a large horizontal arc to demonstrate the doppler effect. Good output volume and variable tone pitch provide all that is required for a dramatic study of the doppler shift associated with a moving sour..

Designed to show the vibration of an object when repeated impulses are applied, this demonstrator consists of two weights of different natural frequencies, two cams driven by a 6V motor with speed control, and four springs. The speed control is used to adjust the frequency of applied force for resonance, so a greater degree of variance is p..

The hand stroboscope is a disc of hardboard or card with a simple pivot at its centre, so that the disc can be kept spinning by hand. The disc has a finger hole, off-centre, to enable the user to keep it spinning. It has narrow slits on its face, near the rim. The slits are evenly spaced and 12 slits are best. When fewer are needed, you ca..

It is mounted in a rectangular plastic case and provided with a pair of 4mm shrouded sockets for input. it has 5w and 8Ω impedance.High quality sound over the complete audio frequency range. A square boss-head mounted on its one side allows it to support on a suitable retort stand...

    To show effects of vibrations in a stretched cord and to investigate relation between frequency , tension and density .It is used for demonstration of stationary waves. it is available in wide-ranging specifications and range. Bench clamp, tuning fork, scale pan and meter scale are the most important parts of this apparatus.C..

Determination of wavelength and velocity of sound in air through the study of resonating air columns. It Comprises a graduated glass tube, mounted on retort stand with suitable clamp and boss, and is connected to a water reservoir through flexible rubber tubing. Reservoir also mounted on the support rod through retort clamp and allows the adju..

A resonance apparatus is used to locate the resonance positions in air columns. From these resonance positions, it is possible to calculate the speed of sound using the water level (measurements are included on the tube) and the frequency of the tuning fork used. ... The resonance tube is over 1.5" / 40mm in diameter...

Made of glass, mounted on circular base...

 It consists of a (usually) plastic tray with a transparent bottom which is usually lit from above using a desk lamp. Some small types can be placed over an overhead projector so that the waves can be projected onto a screen for all to see. Ripple tanks can be used to show all the basis properties of waves including diffraction, refle..

Two fully independent continuously variable DC outputs 0-4.5V each through a pair of colour coded 4mm safety sockets indicated with ripple motor and stroboscope motor supply respectively.A fixed 12V / 48W AC output to power the lamp that accompanies the ripple tank. A beep sound will generate in case of short circuit. Specification:- Output..

It has sine and triangular waves.100hz to 3khz frequency.An internal speaker fitted inside the boxThe frequency and amplitude can be adjusted...

Compact in size with overall 50 cm scale to maintain a gap between two bridges. A  pulley is fitted at the extreme end of  the sonometer  to hang the weight set  on the sample wire...

A  scale fixed on one side between two fixed bridges has multi-coloured segments for easy reading, with each smallest block of 1cm. provided with two movable bridges to facilitate changing effective string length.For investigating pitch of vibrating strings as a function of their tension, length and thickness. Comprises a hollow resonan..

A hollow wooden sounding box,provided with scale at its top, with two wires stretched over fixed bridges, one at each end of the box. One wire passes over a horizontally mounted pulley and has a spring balance for directly reading the tension applied. The second wire is fixed at one end and attached to wrest pin for tension control and provid..