The critical thickness of insulation for a sphere is
A. k/h0
B. 2k/h0
C. h0/k
D. h0/2k
Answer: Option B
Solution (By Examveda Team)
Critical thickness of insulation means maximum heat loss with min thermal resistance. This concept is useful in the situation when surface area of the base object increases with the insulation.The critical thickness of insulation for a sphere is 2k/h0.
This Question Belongs to Mechanical Engineering >> Heat And Mass Transfer
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