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Question

Which of the following is not a base unit in the SI system?

Options

Choose one · Correct answer highlighted

Explanation

SI has seven base units: m, kg, s, A, K, mol, cd. Newton is derived as kg·m/s² from F=ma. Hence it is not a base unit. Among options, Kelvin, Candela and Mole are base units, while Newton is derived, so Newton is correct as per NCERT.

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