Crookes Radiometer STEM Science Lab Demonstration Model Manufacturer,Supplier and Exporter in India

Crookes Radiometer STEM Science Lab Demonstration Model

Product Code : SCL-SK-14274

Indian Lab Suppliers supplies the Crookes Radiometer (Product ID: 14274) as part of its STEM Kit range. It is a light mill whose vanes spin when light falls on them.

Quick Answer

Four light mica vanes, each blackened on one side, turn on a pivot inside a partly evacuated glass bulb on a stand. The dark faces absorb more light and get warmer, and the thin gas left in the bulb pushes the vanes round with the dark faces moving away from the light. Brighter light gives faster spin.

Key Specifications

ParameterDetail
Vanes4 mica vanes, one side blackened
EnclosurePartly evacuated glass bulb
MountStand

Where This Is Used

Related: Heat Absorption Model (Product ID: 14245) and Heat Conductivity Apparatus (Product ID: 14285). Browse the full STEM Kit range or related Physics Lab Equipment products.

Frequently Asked Questions

Why do the vanes turn?
The dark faces warm up and the thin gas pushes them away from the light.

Does brighter light make it faster?
Yes.

Is the bulb a full vacuum?
No, it is partly evacuated.

Related Categories

STEM Kit · Physics Lab Equipment · Electricity and Magnetism

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