Physics And Measurement Question 185

Question: A physical quantity is given by $ X=M^{a}L^{b}T^{c} $ . The percentage error in measurement of $ M,L $ and T are $ \alpha ,\beta $ and $ \gamma $ respectively. Then maximum percentage error in the quantity X is

[Orissa JEE 2005]

Options:

A) $ a\alpha +b\beta +c\gamma $

B) $ a\alpha +b\beta -c\gamma $

C) $ \frac{a}{\alpha }+\frac{b}{\beta }+\frac{c}{\gamma } $

D) None of these

Show Answer

Answer:

Correct Answer: A

Solution:

Percentage error in X $ =a\alpha +b\beta +c\gamma $



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