Stefan Boltzmann Apparatus

The apparatus determines the Stefan Boltzmann constant. The apparatus consists of a hemisphere surrounded by hot water. Hot water is obtained from a water-heating tank. When the blackened disc is inserted at the center of hemisphere, heat is transferred into the disc from hemisphere by radiation and its temperature begins to rise, and from temperature raise rate. And hence the Stefan Boltzmann constant is
determined.
Specifications:

• Water heating tank provided with electric immersion heater.
• Hemisphere made of copper sheet.
• Test disc made of copper is provided with thermocouple at the center.
• Multichannel digital temperature indicator 0-200 C to measure the temperature of hemisphere and disc.

A technical manual accompanies the unit.
Services Required:

• Bench area of about 1m. x 05m. at working height.
• 230v, 15A, AC, electric supply with earthing connection.