A thin annular metal disc of inner and outer radii R1 and R2 respec

1.	A thin annular metal disc of inner and outer radii R1 and R2 respectively, is freely suspended from a point on its outer circumference. The length of the corresponding equivalent simple pendulum is
Answer» Correct option (b) Explanation: Moment of inertia of annular disc about the axis under consideration can be written as m/2(R²₁ + R²₂) + mR²₂ Comparing the expression for the periodic time of this oscillating disc as a compound pendulum with that of a simple pendulum, we get the equivalent length.

A thin annular metal disc of inner and outer radii R1 and R2 respectively, is freely suspended from a point on its outer circumference. The length of the corresponding equivalent simple pendulum is

Answer»

Correct option (b)

Explanation:

Moment of inertia of annular disc about the axis under consideration can be written as m/2(R²₁ + R²₂) + mR²₂ Comparing the expression for the periodic time of this oscillating disc as a compound pendulum with that of a simple pendulum, we get the equivalent length.

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A thin annular metal disc of inner and outer radii R1 and R2 respectively, is freely suspended from a point on its outer circumference. The length of the corresponding equivalent simple pendulum is

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