GENERAL KNOWLEDGE

GK

UNITS DEVICES DIMENSIONS AND MEASUREMENTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The SI unit of “pressure” is
A
kg
B
joule
C
dyne
D
pascal
Explanation: 

Detailed explanation-1: -The pascal (Pa) is the unit of pressure or stress in the International System of Units (SI). It is named after the scientist and mathematician Blaise Pascal. One pascal is equivalent to 1 newton (N) of force applied over an area of 1 square meter (m2).

Detailed explanation-2: -One pascal can be defined as the pressure exerted on a surface of area 1m2 by a force of 1N that acts normally on it. The S.I unit of pressure is newton per meter2.

Detailed explanation-3: -The unit of the pressure of the pascal is equivalent to one newton per square metre (N/m2). In our day to day life, the pascal is most frequently used in the form of kilopascal (1 kPa = 1000 Pa). One kilopascal corresponds to about 1% of atmospheric pressure with reference to the sea level.

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