Physics, asked by mehakaq03, 8 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
7

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
1

because of the warm temperature the mercury rises

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