In a science quiz competition, Payal is asked a question where she had to choose the
statement which was/were incorrect?
(a) The greater the depth of a point in a liquid, the greater is the pressure.
(b) A liquid exerts pressure on the walls of its container.
(c) The atmospheric pressure is maximum at the high mountain.
(d) None of the above
Answers
Answer:
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The incorrect statement is: (c) The atmospheric pressure is maximum at the high mountain.
- Pressure inside a liquid column = hρg i.e Pressure ∝ h
(here, h = depth of point, ρ = density od liquid and g = acceleration due to gravity)
- A liquid exerts equal pressure on the walls of its container.
- The atmospheric pressure decreases as the altitude from the sea level increases. This is because the atmosphere becomes thinner and thinner as the altitude increases.
- Hence, the pressure will be low at the top of a mountain.