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If A and B are two physical quantities having different dimensions then which of the following can denote a new physical quantity?A. `A+(A^(3))/(B)`B. `exp(-(A)/(B))`C. `AB^(2)`D. `(A)/(B^(4))` |
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Answer» For (A): A and `(A^(3))/(B)` may have same dimension. For (B) : As A and B have different dimension so `exp(-(A)/(B))` is meaningless. For (C): `AB^(2)` is meaningful, For (D) : `AB^(-4)` is meaningful. |
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