Which statement about a thermos flask is NOT correct?

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1. Which statement about a thermos flask is NOT correct?

Its walls are separated by a vacuum and made of glass, a poor heat conductor

The glass walls themselves have shiny, reflective surfaces

The inner wall freely radiates heat outward, which the outer wall then absorbs

The cork supports holding the inner flask in place are poor conductors of heat

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The whole purpose of silvering the flask’s walls is to reflect radiant heat back, not let it pass through freely. Describing the inner wall as freely radiating heat that the outer wall absorbs misrepresents how the silvering actually works.