Mechanical Engineering Mcqs
Q According to Kirchoff’s law, the ratio of emissive power to absorptivity for all bodies is equal to the emissive power of a _________________?
  • A A. Grey body
  • B B. Brilliant white polished body
  • C C. Red hot body
  • D D. Black body
Previous Joule sec is the unit of_________________?
Next All radiations in a black body are___________________?
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Word of the Day
27 Sep
Undesirable
not wanted or desirable because harmful, objectionable, or unpleasant.
غیر مطلوب، ناروا، نامناسب

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