A vacuum flask reduces heat transfer by __________
a) Conduction
b) Convection
c) Radiation
d) All of these
Answers
Answered by
1
Explanation:
A thermos flask has double walls, which are evacuated and the vacuum bottle is silvered on the inside. The vacuum between the two walls prevents heat being transferred from the inside to the outside by conduction and convection.
Answered by
2
Answer:
option d....make me as brainliest
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