A physical quantity x is calculate from x=(ab^(2))/(sqrt(c)). Calculate the percentage error in measuring x when the percentage errors in measuring a,b,c are 4,2 and 3 percent respectively :

A physical quantity x is calculate from x=(ab^(2))/(sqrt(c)). Calculat

1.	A physical quantity x is calculate from x=(ab^(2))/(sqrt(c)). Calculate the percentage error in measuring x when the percentage errors in measuring a,b,c are 4,2 and 3 percent respectively :
Answer» `7%` `9%` `11%` `9.5%.` Solution :Here `(Deltax)/(x)xx100=(Deltaa)/(a)xx100+2(Deltab)/(b)xx100+(1)/(2)(DELTAC)/(c)xx100` `=[4+2xx2+1//2xx3]%` `9.5%.` Hence correct choice is `(d).`

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A physical quantity x is calculate from x=(ab^(2))/(sqrt(c)). Calculate the percentage error in measuring x when the percentage errors in measuring a,b,c are 4,2 and 3 percent respectively :

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