Out of the following, maximum temperature drop for a given heat flow & for the same thickness will be in the case of________________?
Correct answer: B. Glass wood
- A. Steel
- B. Glass wood
- C. Copper
- D. Fireclay bricks
Explanation
For the same heat flow, area, and thickness, the temperature drop varies inversely with thermal conductivity. Glass wool, presumably intended by “glass wood,” has the lowest conductivity among the listed materials, so it gives the largest drop.
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