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A physical quantity P is given by the re...

A physical quantity P is given by the relation `P=P_0e^((-nt^2))` . If t denotes the time, the dimensions of constant `alpha` are

A

dimensionless

B

has dimension of `T^(-2)`

C

has dimensions of `P`

D

has dimension of `T^(2)`

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The correct Answer is:
B
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VMC MODULES ENGLISH-UNITS, MEASUREMENTS & ERRORS-Efficient
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