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 errors in the measurement of force and length are respectively, 4 % and 2 % , then the maximum error in the measurement of pressure is

Question

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 errors in the measurement of force and length are respectively, 4 % and 2 % , then the maximum error in the measurement of pressure is, 1 %, 2 %, 6 %, 8 %

MARKS App · Accepted Answer

∴ p = F A = F l 2 , so maximum error in pressure p is Δ p p × 100 m a x = Δ F F × 100 + 2 Δ l l × 100 = 4 % + 2 × 2 % = 8 %

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