Answer the question-The diagram shows a simple mercury barometer- used to measure atmospheric pressure-Atmospheric pressure decreases-Which row states what happens to the pressure point P and what happens to the level L -Pressure Plevel LAdecreasesfallsBdecreasesrisesCstays the samefallsDstays the samerises

Question

Toppr Admin · Accepted Answer

There is no mercury at point PIf atmospheric pressure decreases- pressure at point P also decreasesPressure at L - -p-o- same as atmospheric pressure-To balance that decreased pressure- Level L falls-Hence option A-160- is correct-

	Pressure at P	level L
A	decreases	falls
B	decreases	rises
C	stays the same	falls
D	stays the same	rises

There is no mercury at point PIf atmospheric pressure decreases, pressure at point P also decreasesPressure at L = $$p_o$$ same as atmospheric pressure.To balance that decreased pressure, Level L falls.Hence option A is correct.

There is no mercury at point P
If atmospheric pressure decreases, pressure at point P also decreases
Pressure at L = $$p_o$$ same as atmospheric pressure.
To balance that decreased pressure, Level L falls.
Hence option A is correct.