Physics, asked by mehakaq03, 9 months ago

Why the column of mercury first descends and then rises when the bulb of thermometer is placed over flame?

Answers

Answered by nidhirandhawa7

Answer:

When mercury in a glass thermometer is put in a flame, does the column of mercury first descend and then rise? It might. ... In that interval, the volume inside the bulb will increase faster than the volume of the mercury will, causing the mercury column to drop briefly before the mercury heats up.

Answered by Aditikumari06

because of the warm temperature the mercury rises

Previous Question

Next Question

Similar questions

Science, 4 months ago

a) Write any four characteristics of a good fuel. b) “The calorific value of LPG is 55000 KJ/Kg.” What does it mean? c) In an experiment, 5 kg of a fuel was completely burnt. The heat produced was measured to be 150,000 kJ. Calculate the calorific value of the fuel.

Biology, 4 months ago

Sperms are produced in A) Seminal ducts B) Penis C) Testis...

Social Sciences, 4 months ago

What do you mean by mean sea level? for 4 marks ...

Math, 9 months ago