Question

An iron bar has mass 390 g and volume 50 cm³.Find the density of iron in (a) gcm–³ (b) kgm–³​

Answer 1

Answer:

Density of Iron bar is 7.8 g cm⁻³ and 7800 kg m³.

Answer 2

$\fbox\red{QUESTION :- }$

An iron bar has mass 390 g and volume 50 cm³.Find the density of iron in (a) gcm–³ (b) kgm–³

$\fbox\red{VERIFIED\:SOLUTION :- }$

(a) Density (d) =

$\frac{Mass}{Volume} = \frac{390gcm}{ {50cm}^{3} } = 7.8 {gcm}^{ - 3} .$

(b) Density of iron in

${kgm}^{ - 3} = 1000 \times 7.8 \: {kgm}^{ - 3} \\ = 7800 \: {kgm}^{ - 3} .$