Question

A physical quantity is given by x=a2√b÷c2. If the percentage errors of measurement in a, b and c are 3%, 2℅, 1℅ respectively, then the percentage error in x is?​

Answer 1

Explanation:

delta x / x = 2 delta a / a + 1/2 delta b / b + 3 delta c / c

this implies delta x / x × 100 ( percentage error in x ) = 3×2 + 1/2 × 2 + 3× 1 = 10 percent