The natural frequency of free torsional vibrations of a shaft is equal to (where q = Torsional stiffness of the shaft, and I = Mass moment of inertia of the disc attached at the end of a shaft)

2≈ì√Ñ. ‚Äö√ √∂(q/I)

(1/2≈ì√Ñ). ‚Äö√ √∂(q/I)

The natural frequency of free torsional vibrations of a shaft is equal

1.	The natural frequency of free torsional vibrations of a shaft is equal to (where q = Torsional stiffness of the shaft, and I = Mass moment of inertia of the disc attached at the end of a shaft)
A.	2≈ì√Ñ. ‚Äö√ √∂(q/I)
B.	2≈ì√Ñ qI
C.	(1/2≈ì√Ñ). ‚Äö√ √∂(q/I)
D.	1/2≈ì√Ñ
Answer» D. 1/2≈ì√Ñ

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The natural frequency of free torsional vibrations of a shaft is equal to (where q = Torsional stiffness of the shaft, and I = Mass moment of inertia of the disc attached at the end of a shaft)

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