A shaft of diameter d carries two discs at its two ends. The lowest torsional
frequency is ω n . If the diameter is doubled, then the lowest torsional frequency
becomes
A 4ω n
B ω n /2
C ω n /4
D 4ω n
frequency is ω n . If the diameter is doubled, then the lowest torsional frequency
becomes
A 4ω n
B ω n /2
C ω n /4
D 4ω n