1.

A physical quantity P is given by P = (a^(2)b^(2))/(cd). If the percentage errors of measurement in a,b,c,d are 1%, 2%, 3%, 4%respectively, then calculate the percentage error in the calculatioon of P.

Answer»

0.14
0.13
0.07
0.04

Solution :`(DeltaP)/(P)xx100=3((DELTAA)/(a)xx100)+2((Deltab)/(b)xx100)+((Deltac)/(c)xx100)+((DELTAD)/(d)xx100)`
`(3 xx 1 %) + (2 xx 2 %) + 3 % + 4 %`
= 14 %


Discussion

No Comment Found