Questions
It is hotter over top of the fire than at same distance on the sides due to
a
Conduction
b
Convection
c
Radiation
d
All the above
detailed solution
Correct option is B
When temperature of a fluid is increased, average intermolecular separation increases, so its density decreases. This hot fluid moves upward creating vaccum, which is filled by cold fluid coming from all sides and top. Hence option-(2) is right.Talk to our academic expert!
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Newton's law of cooling is used in the laboratory for determining:
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