JEE Main 2022 Physics question

PhysicsUnits and MeasurementJEE Main 2022

A torque meter is calibrated to reference standards of mass, length and time each with 5% accuracy. After calibration, the measured torque with this torque meter will have net accuracy of

Answer: (2)

Solution

The dimensions of torque are , so the maximum fractional error is

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Question ID VK-034356