![Q. Thermal conductivity of glass-wool varies from sample to sample because of variation in](https://www.gkseries.com/blog/wp-content/uploads/2022/04/Q.-Thermal-conductivity-of-glass-wool-varies-from-sample-to-sample-because-of-variation-in.png)
Q. Thermal conductivity of glass-wool varies from sample to sample because of variation in
A. composition
B. density
C. porosity
D. all of the above
Answer: all of the above.
A. composition
B. density
C. porosity
D. all of the above
Answer: all of the above.
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