Verification of Stefan`s Law

• Verification of Stefan’s law by electrical method
• Study the temperature dependence of total radiation and hence, verify the Stefan’s law

FAQS

1.What is the verification of Stefan’s law experiment?

The experiment of verifying the law of Stefan proves that the radiant energy emitted per unit area of a body is proportional to the fourth power of its absolute temperature of the body.

2.How is the verification of Stefan’s law by electrical method performed?

Under this technique, a radiating body is a filament lamp. Power can be determined by voltage and current, and temperature can be determined indirectly by resistance, so it is possible to test the law of Stefan.

3.What is the objective of verification of Stefan’s law?

The main objective is to study the relationship between temperature and radiated energy and to confirm that radiation increases with the fourth power of absolute temperature.

4.What equipment is required for Stefan’s law experiment?

The experiment typically involves a filament lamp, voltmeter, ammeter, variable DC power supply and measuring instruments to measure resistance and temperature.

5.Why is Stefan’s law important in thermodynamics?

Stefan’s law is important because it helps in understanding heat radiation and energy transfer, and is widely applied in physics, engineering, and thermal studies.