Question

The pressure of the atmosphere at any

point is the weight of the air column of a unit

cross sectional area.

Its unit is bar.

a) Identify the

given diagram

and write its

use. (1)

b) State Pascal’s

law for transmission of fluid pressure

and explain the principles of working

of a hydraulic lift. (3)

c) The above arrangement is placed in

an elevator which is accelerating

upwards. What happens to the

possible height of the liquid column

in the tube? Justify.

Answer 1

Answer:

the aboveregiment is placed in an elevator which is upward the possible height of the liquid column in the tube is 22 CM length and breadth is 42 CM