Black Body Radiation: Why Objects Emit Different Wavelengths

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Objects emit radiation of different wavelengths at a given temperature due to the diverse thermal motions and degrees of freedom of their microscopic particles. Each particle vibrates at various frequencies, leading to the emission of energy across a spectrum of wavelengths. Temperature represents an average of these varied microscopic activities, similar to the multiple conversations in a crowded room. This phenomenon is explained by black body radiation principles, where the distribution of emitted wavelengths is influenced by the object's temperature. Understanding this concept is crucial for grasping how thermal radiation works in different materials.
arun.vak1103
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why or how does an object emit radiation of different wavelength for a given temperature?
 
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Google for "black body radiation", read what you find there, and if you have more specific questions or need help with some point, come back with a more focused questiojn - you'll get better answers faster that way.
 
The doubt is, how can a body emit radiations of different wavelength, for a given temperature ?
 
The thermal motions and other degrees of freedom occur at a wide variety of frequencies, and so energy is emitted at a variety of frequencies.
 
arun.vak1103 said:
The doubt is, how can a body emit radiations of different wavelength, for a given temperature ?

Temperature is a sort of macroscopic average across a very large number of microscopic particles doing very different things. Think of the steady buzz of conversation you hear in a crowded room when many different people are having many different conversations in many different tones of voices.
 

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