Question

the mass (m) of the iron block has direct variation with its volume
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Answer 1

Answer:

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Answer 2

The mass (m) of the iron block indeed has a direct variation with its volume (V).

We know that,

∴ Density = $\frac{mass}{volume}$

We can say that the density will be constant for a given substance. Thus, the mass of the substance will be directly proportional to its volume.

⇒ Mass ∝ Volume