Question

A physical quantity is measured as Q=(2.1+/- 0.5) units. Calculate%error:a) q^2, b)2Q

Answer 1

Answer:

Explanation:

(i) % error in q =  \frac{0.5}{2.1} \times 100= 23.81%

   there fore % error in  q^{2}  = 2 \times 23.81 = 47.62%

(ii) % error in 3q = % error in q = 23.81%