Download App

Pressure in Fluids and Atmospheric Pressure — PHYSICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9PHYSICSPressure in Fluids and Atmospheric Pressure2 Marks
Question
Give two reasons why water is not a suitable barometric liquid.
✓

Answer

Water is not a suitable barometric liquid because: (i) The vapour pressure of water is high, so its vapours in the vacuum space will make the reading inaccurate. (ii) Water sticks with the glass tube and wets it, so the reading becomes inaccurate.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[2 Mark Question Answer]" from Pressure in Fluids and Atmospheric Pressure→Pressure in Fluids and Atmospheric Pressure — all question types→PHYSICS STD 9 question papers→ICSE Board STD 9 question papers→ICSE Board question paper generator→

Similar questions

Use Newton's second law of motion to explain the following instance :
An athlete prefers to land on sand instead of hard floor while taking a high jump .
→
How will the force of gravitation between two objects change if the distance between them is:
Halved
→
A wooden block is weighed with iron, such that combination just floats in water at room temperature. State your observations when :
(1) water is heated above room temperature
(2) water is cooled below $4^{\circ} C$. Give reasons to your answers in (1) and (2).
→
What conclusion is drawn regarding the magnetic field at a point if a compass needle at that point rests in any direction? Give reason for your answer.
→
How will the following factors affect the speed of sound in air:
Temperature of air.
→
State two main characteristics of the image formed by a plane mirror.
→
What do you understand by the term momentum?
→
Define parsec. Is it the same as the Astronomical unit?
→
Which is greater?
(i) 36 km/hr
(ii) 8.5 m/s
→
How is water drawn up from a well by a water pump?
→