The silvered surface in a vacuum flask reduces heat loos due to
Question 1 Report
The silvered surface in a vacuum flask reduces heat loos due to
Answer Details
A vacuum flask is a container that is used to keep liquids hot or cold for extended periods of time. It consists of two glass walls separated by a vacuum, which reduces heat transfer through conduction and convection. However, heat transfer through radiation still occurs.
To further reduce heat loss through radiation, the inner surface of the outer glass wall is coated with a thin layer of silver. Silver is a good reflector of radiant heat, which means that it reflects the heat back towards the liquid rather than allowing it to escape through the glass wall. This process of reflecting heat back towards the liquid is known as radiation.
Therefore, the correct answer to the question is radiation.
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