Question

A rectangular plate has a length 1.00 ± 0.01 cm and breadth 0.50 ±0.01 cm, find the percentage error in its area 1 % 2% 3% 4%

Answer 1

Answer:

= 3%

Explanation:

We have

◾Length 1.00 ± 0.01 cm

◾Breadth 0.50 ±0.01 cm

$\bigstar \sf{ \%_{error} = \left(\dfrac{\triangle L}{L} + \dfrac{\triangle B}{B}\right)\times 100}$

$\sf{ \%_{error} = \left(\dfrac{\triangle 0.01}{1} + \dfrac{\triangle 0.01}{0.50}\right) \times 100}$

$\sf{ = \left(0.01 + 0.02 \right)(100) }$

= 3 %