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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 dimensionlessB. Has dimensions `T^(-2)`C. Has dimensions of PD. Has dimensions `T^(2)` |
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Answer» Correct Answer - B `alphat^(2)` must be dimensionless |
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