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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» Correct Answer - A::C::D 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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