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BECE Science 2023 Paper

Question : 30

Total: 40

Solution:

Concept:

A derived unit is formed by combining base SI units.

Explanation:

Base units include kg, k (kelvin), and s.

Pressure in SI is measured in pascal (Pa).

The pascal is expressed as

\mathrm{kg} \cdot \mathrm{m}^{-1} \cdot \mathrm{s}^{-2}

Since it is built from base units, Pa is a derived unit.

Answer:

C. Pa.

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