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JEE Main 28 Jan 2026 Shift 2 Paper Solved Paper

Section: Physics

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Question : 28

Total: 75

The time period of a simple harmonic oscillator is T=2π√‌

. Measured value of mass (m) of the object is 10 g with an accuracy of 10 mg and time for 50 oscillations of the spring is found to be 60 s using a watch of 2 s resolution. Percentage error in determination of spring constant (k) is ____ \%.

[28 Jan 2026 Shift 2]

3.43
7.60
3.35
6.76

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