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JEE Main Physics question

PhysicsUnits and MeasurementJEE Main

The period of oscillation of a simple pendulum is given by , where is about and is known to have accuracy. The period is about . The time of 100 oscillations is measured by a stop watch of least count . The percentage error in is

Answer: (C)

Solution

. Percentage error in : . The total time for 100 oscillations is with error

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Question ID VK-157467