Question

The time dependence of a physical quantity `P` is given by `P = P_(0)e^(-alpha t^(2))` , where `alpha` is a constant and `t` is time . Then constant `alpha` is//has
A. is dimensionless
B. has dimensions of `T^(-2)`
C. has dimensions of `P`
D. has dimensions of `T^(2)`

Answer 1

Correct Answer - B
`alpha t^(2) = M^(0) L^(0) T^(0)`