The density of Block A is equal to the density of Block B, therefore statement (c) is correct .
What do you mean the term density ?
Density is the ratio between mass and volume or mass per unit volume.
The SI unit of density is kilogram per cubic meter (kg/m3).
It is represented in the c g s unit of grams per cubic centimeter (g/cm3).
It is formulated by -:
Density=Mass/Volume
To calculate densities in each boxes -:
For Block A -
mass=2 kg
volume= l b h
volume=5×2×1
volume=10 cm³
Therefore,
density for block A=mass/volume
density for block A=0.2 g/cm³
For Block B-
mass=2 kg
volume= l b h
volume=10cm³
Therefore,
density for block B=mass/volume
density for block B=0.2 g/cm³
For Block C-
mass=3 kg
volume= l b h
volume=10cm³
Therefore,
density for block C=mass/volume
density for block C=0.3 g/cm³
Hence the density of Block A is equal to the density of Block B ,therefore option (c) is correct.
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