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This apparatus is used to calculate the Stefan Boltzman constant.

Experimental setup consisting of:

• Copper hemi-sphere of dia 200mm enclosed in metal water jacket.
• Hot water tank with emission heater.
• Test disc of dia 25mm and weight 5gm.
• Set of thermocouple - 3 Nos.

Control panel consisting of:

• 3-Channel Temperature Indicator 0-200oC
• Mains ON/OFF switch.
• Digital Voltmeter 0-250V
• Digital Ammeter 0-2A