1.

If C is the restoring couple per unit radian twist and I is the moment of inertia, then the dimensional representation of 2pisqrt(I/(c)) will be :

Answer»

`[M^(0)L^(0)T^(0)]`
`[M^(0)L^(0)T^(1)]`
`[M^(0)L^(1)T^(-1)]`
`[M^(1)L^(2)T^(-2)]`

Solution :Here `2pisqrt((I)/(C))` will have the dimensions of time PERIOD
`I=ML^(2)` and `C=ML^(2)T^(-2)`
`:.sqrt((I)/(C))=(T^(2))^(1//2)=T^(1)`
HENCE `(b)` is CORRECT.


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