The expression S = a/b (1 - e^(-bt)) is ...

The expression `S = a/b (1 - e^(-bt))` is dimensionally true. The dimensional formula of a and b are respectively, (if S is the displacement at any instant t,)

A

LT and T

B

`L^(-1)T and T^(-1)`

C

`LT^(-1) and T^(-1)`

D

`LT^(-1) and T`

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The correct Answer is:

C

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