JEE MainPhysicsEasyError analysis

The pressure on a square plate is measured by measuring the
force on the plate and the lengthof the sides of plate. If the maximum
error in themeasurement of force and length are respectively 4 and 2 then what is the maximum percentage error in themeasurement of pressure?

Show answer and solution

P = \frac{F}{A};\ \ \lbrack P\rbrack = \left\lbrack \frac{F}{A} \right\rbrack = \left\lbrack \frac{{MLT}^{- 2}}{L^{2}} \right\rbrack = \left\lbrack {ML}^{- 1}T^{- 2} \right\rbrack

Source: Grass-G / P-05 Physics paper 10 October.docx

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