11th Class Physics Thermal Properties of Matter / द्रव्य के तापीय गुण Question Bank Thermal Properties of Matter Conceptual Problems

  • question_answer
    Is it necessary that all black coloured objects should be considered black bodies?

    Answer:

                    No. A polished black surface is not a black body because it reflects radiation incident on it. On the other hand, the sun, which is a dazzling white body, is a black body.


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