The vacuum and silvered wall surfaces of a vacuum flask walls are respectively

Physics

WAEC 2024

A. minimize conduction and convection and prevent radiation
B. prevent conduction and convection and minimize radiation
C. prevent conduction and minimize convection and radiation
D. minimize convection and prevent conduction and radiation

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Correct Answer: Option B

Explanation

Vacuum: It prevents conduction and convection because there are no air molecules to transfer heat.
Silvered Walls: They minimize radiation by reflecting thermal radiation back.

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The vacuum and silvered wall surfaces of a vacuum flask walls are respectively

Correct Answer: Option B

Explanation

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