The pressure on a square plate is measured by measuring the force on the plate and the length of the sides of the plate . If the maximum error in the measurement of force and length are , respectively , `4% and 2%`. Find the maximum error in the measurement of pressure.

Options

A. 0.01
B. 0.02
C. 0.06
D. 0.08

Explanation

`P=(F)/(A)=(F)/(L^(2))`
For max. error
`(DeltaP)/(P)=(DeltaF)/(F)+(2DeltaL)/(L)=4%+2(2%)=8%`