Question

1. What is the SI unit of atmospheric pressure?
a.newton/ metre
b. pascal
C.mm/Hg
d. amu

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Answer 1

Answer:

correct Option is B

Explanation:

For pressure, the SI system's basic unit is Pascal (Pa), which is N/m² (Newton per square meter, while Newton is kgm/s²). Pascal is a very small pressure unit and for example the standard atmospheric pressure is 101325 Pa absolute.

Answer 2

$\huge \rm{ \underline{ \underline \color{magenta}{required \: answer}}}$

What is the SI unit of atmospheric pressure?

a.newton/ metre

b. pascal $\checkmark$

C.mm/Hg

d. amu

Additional information

• The current way of defining SI unit is a result of decades-long move towards increasingly abstract and idealized formulation in which the realisation of the units are separated conceptually from the definitions. As far as realisation of units, the CIPM consultative committees based on the best available science of the moment, recommended a variety of experimental methods that can be used to realise the definitions of the base units.

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