A hollow sphere of radius 2 cm is hung by a string of length 98 cm (to the top of the sphere). Treating it as a point mass at its centre, find the period of small oscillations, in s ( $g = π^{2}$ m/s²).
Answer:
2
Solution:
Effective length $l = 0.98 + 0.02 = 1.00$ m. $T = 2 π l / g = 2 π 1/ π^{2} = 2$ s.

Question

A hollow sphere of radius 2 cm is hung by a string of length 98 cm (to the top of the sphere). Treating it as a point mass at its centre, find the period of small oscillations, in s ( g = π 2 m/s²).

TestHub · Accepted Answer

Effective length l = 0.98 + 0.02 = 1.00 m. T = 2 π l / g ​ = 2 π 1/ π 2 ​ = 2 s.

Physics - SHM Question with Solution | TestHub

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