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"Which phrase describes blackbody radiation? A. Radiation that is absorbed by an object as it warms B. Light given off by an object based on its temperature C. Radiation that explains the wave model of light D. Light given off by an object based on its color"

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Step 1
: Identify the definition of blackbody radiation.

Blackbody radiation is the electromagnetic radiation emitted by an object due to its temperature. The frequency and wavelength of this radiation depend solely on the object's temperature, not on any other factors such as the object's composition or surface characteristics.

Step 2
: Compare the given options to the definition.

Option A: Radiation that is absorbed by an object as it warms. This is the opposite of blackbody radiation, which is radiation emitted by an object, not absorbed. Option B: Light given off by an object based on its temperature. This aligns with the definition of blackbody radiation. Option C: Radiation that explains the wave model of light. This is unrelated to the concept of blackbody radiation. Option D: Light given off by an object based on its color. This is incorrect because blackbody radiation depends on the object's temperature, not its color.

Final Answer

The phrase that describes blackbody radiation is "Light given off by an object based on its temperature."

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