To a Physicist, a Blackbody Is Defined as an Object

question 117

Multiple Choice

To a physicist, a blackbody is defined as an object that

• A) always emits the same spectrum of light, whatever its temperature.
• B) reflects all radiation that falls on it, never heating up and always appearing black.
• C) always appears to be black, whatever its temperature.
• D) absorbs all radiation that falls on it.