The time dependence of a physical quanti...

The time dependence of a physical quantity P is given by `P=P_(0) exp (-alpha t^(2))`, where `alpha` is a constant and t is time. The constant `alpha`

A

Is dimensionless

B

Has dimensions `T^(-2)`

C

Has dimensions of P

D

Has dimensions `T^(2)`

लिखित उत्तर

Verified by Experts

The correct Answer is:

B

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