Question

16. The density of a cube is measured by measuring its mass and
length of its sides. If the maximum error in the measurement
of mass and lengths are 3% and 2% respectively, the maximum
error in the measurement of density would be
(a) 12%
(b) 14%
(c) 7%
(d) 9%.
17. A certain body weighs 22.42 g and has a manou​

Answer 1

16. The answer is d

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Answer 2

Answer:

16. The density of a cube is measured by measuring its mass and

length of its sides. If the maximum error in the measurement

of mass and lengths are 3% and 2% respectively, the maximum

error in the measurement of density would be

(a) 12%

(b) 14%

(c) 7%

(d) 9%.

Answer is (d) 9%.

Density : mass /volume

= Δd/d = Δm/m + 3Δl/l

Δd/d = 3 + 3 * 2

Δd/d = 3 + 6

Δd/d = 9%

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