Ten > Scientific Learning
Which of the following is a derived unit?
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Solution
Option C is the correct answer.
Candela, ampere, and kelvin are the units of Luminous Intensity, Current, and Temperature. These three quantities are fundamental physical quantities. They do not depend upon any other physical quantity.
On the other hand, Joule is the unit of Work done or Energy, which is a derived physical quantity. It depends upon mass (kg), length (m), and time (s).
Hence, Joule is the derived unit among the given four units.
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