Leslie's Cube Manufacturer,Supplier and Exporter in India

Leslie’s Cube (Product Code: SLE/H/06) is a 4 x 4" hollow cube used to measure thermal radiation properties as a function of temperature, colour and surface texture. Filled with hot water, its differently finished faces sit at the same temperature yet radiate by different amounts, giving a direct, measurable demonstration that surface matters as much as heat. Physics teachers and college practical labs use it to introduce emissivity and black-body ideas, and it is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala.

Specifications

Typical Use

Fill the cube with hot water and place a thermometer in it so the internal temperature is known. Point a radiation sensor or an infra-red thermometer at each face in turn from the same distance and record the readings: although every face is at the same temperature, the dark and dull faces register more radiation than the shiny ones. Repeat as the water cools, or refill with water at different temperatures, to show how emitted radiation rises steeply with temperature.

The experiment connects directly to everyday design choices — why radiators are often painted, why vacuum flasks are silvered and why solar collectors are dark. Have students predict the order of the faces before measuring, then compare predictions with data. Empty and dry the cube after use and avoid scratching or marking the faces, since their finish is what the lesson depends on. For institutions sourcing physics lab equipment in India, it pairs naturally with radiation cans for a complete radiation unit.

Manufacturer

Leslie’s Cube is part of the physics range offered by ScienceLab, the brand under which Jain Scientific Equipments Private Limited of Ambala, Haryana, trades. As a physics instruments supplier in India that also serves international markets, the company outlines its work on the company profile page.

Related Laboratory Equipment

Items that complete a Leslie’s cube practical:

• Immersion Thermometer — measures the water temperature inside the cube.
• Thermometer, Infra Red, Hand Held — a quick way to compare readings from each face.
• Hot Plate General Purpose — heats the water before filling.
• Radiation Can Set — follows on with absorption and cooling comparisons.

See the full Heat category for more thermal physics apparatus.

Frequently Asked Questions

What size is the cube?
It measures 4 x 4".

What else do I need?
Water, a thermometer and a light source are needed but not included. A radiation sensor or infra-red thermometer is also useful for comparing the faces.

What does the experiment demonstrate?
How thermal radiation depends on temperature, colour and surface texture — the basis of emissivity and good and poor emitters.

Can boiling water be used?
Hot water is the normal method. Please check with us about any upper temperature limit before pouring in boiling water.

How do I keep the faces in good condition?
Wipe gently with a soft dry cloth, avoid abrasive cleaners and never stack items on the cube.

What should our purchase office include in an enquiry?
Product code SLE/H/06, quantity, billing and delivery details, and any tender format you must follow; we reply with a formal quotation.

Request a Quote

For pricing, write to us through the contact page or add Leslie’s Cube to the enquiry cart.

Last updated: 24 September 2026