Physics And Measurement Question 256
Question: A, B, C and D are four different physical quantities having different dimensions. None of them is dimensionless. But we know that the equation $ AD=CIn\text{ (}BD\text{)} $ holds true. Then which of the combination is not a meaningful quantity?
Options:
A) $ \frac{C}{BD}-\frac{AD^{2}}{C} $
B) $ A^{2}-B^{2}C^{2} $
C) $ \frac{A}{B}-C $
D) $ \frac{(A-C)}{D} $
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Answer:
Correct Answer: D
Solution:
[d] Dimension of A $ \ne $ dimension of[c] Hence A - C is not possible.