Question

Length, breadth, height of a box are 4cm, 12 cm and 1 m. If density of air is 1.2 kg/m³. The mass of air present in the box is

• A. 5.76g
• B. 5.76 kg
• C. 57.6 g
• D. 57.6 kg

Answer 1

Answer:

A. 5.76g

Volume = 4x12x100 cm³ Density =1.2 kg/m³ = (1.2 x 1000) / (100 x 100 x 100) g/cm³ = 12/(100 x 100) g/cm³ Mass/ Volume = Density mass = Density x Volume = 12/(100x100) x 4 x 12 x 100 = 576/100 = 5.76g.