The S.I unit of pressure is:

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Pascal

Atm

Newton

None of the above

answer is A.

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Detailed Solution

Concept- Pressure is derived from force per unit area.Pressure is measured by barometer.
The force imposed on a material in a unit area is referred to as pressure. The unit of pressure is derived.
It is made up of fundamental SI units that have been combined. Pascal is the SI unit of pressure and is defined as newton per square metre of force.Some of these decide from a unit of force divided by a unit of area; the SI unit of pressure, the pascal( Pa), for illustration, is one newton per forecourt metre( N/ m2); also, the pound- force per forecourt inch( psi) is the traditional unit of pressure in the Homeric andU.S. customary systems. Pressure may also be expressed in terms of standard atmospheric pressure; the atmosphere( atm) is equal to this pressure, and the torr is defined as 1⁄760 of this. Manometric units similar as the centimetre of water, millimetre of mercury, and inch of mercury are used to express pressures in terms of the height of the column of a particular fluid in a manometer.

Hence, the correct option is 1.

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