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Period of a small sphere oscillating in a watch glass of radius of curvature 1.6 m

The same question, asked 3 times: 3 May 2023 S1, 25 Apr 2025 S1, 15 Apr 2026 S1. Every wording below, oldest first.

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  1. Question 1

    3 May 2023 S1

    2
    A small sphere oscillates simple harmonically in a watch glass whose radius of curvature is 1.6 m. The period of oscillation of the sphere in second is (acceleration due to gravity, g=10 m/s2g=10\ \text{m/s}^2)

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  2. Question 2

    25 Apr 2025 S1

    30
    A small sphere oscillates simple harmonically in a watch glass whose radius of curvature is 1.6 m . The period of oscillation of the sphere is (acceleration due to gravity g=10 m/s2g = 10\text{ }m/s^{2})

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  3. Question 3

    15 Apr 2026 S1

    120
    A small sphere oscillates simple harmonically in a watch glass whose radius of curvature is 1.61.6 m. The period of Oscillation of the sphere is (Acceleration due to gravity g=10 m/s2g = 10\ \mathrm{m/s^2})

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