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When a warm object is heated up, the thermal radiation it emits changes. Give two ways in which the thermal radiation changes

Sagot :

Answer:

*The increase in thermal energy  the maximum emission of radiation changes according to Wien's law

*The increase in thermal energy  he intensity of the energy increases significantly, proportional to the fourth power of the temperature

Explanation:

When bodies heat up, the vibrations of their molecules and atoms increase, due to the energy, therefore the internal energy (Temperature) of the body also increases.

The increase in thermal energy relaxes in an increase in body temperature, when this happens the maximum emission of radiation changes according to Wien's law that gives a shift towards the visible as the temperature increases.

Furthermore, the intensity of the energy increases significantly, in a curve described by the Planck expression.

These increases are proportional to the fourth power of the temperature

           P = σ A e T⁴

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