what is thermos flask
Answers
Answered by
2
a flask which does not allow radiation of heat so keeps a substance cool and does not allow a substance"s heat to escape and helps to make it hot.It ia a useful deviceAlso known as vaccum flask
achinthya:
thanks brother ;0
Answered by
0
A thermos flask has double walls, which are evacuated and the vacuum is silvered on the inside.
thenks ;]
Similar questions