The density of the metal object is 0.74 gm/[tex]cm^{3}[/tex] .
What is density?
Density describes how compact or concentrated something is. For example, suppose you have two boxes, one large and one small. However, they both weigh the same. That means the small box has a higher density than the large box.
The density, of a substance is its mass per unit volume. The symbol most often used for density is ρ, although the Latin letter D can also be used.
According to the question
Volume of Glass contains water and metal object = 42 ml
Mass of metal object in glass = 20g
metal object placed in the glass causes the water level to rise by =15 ml
Volume of metal = 42ml - 15 ml
= 27 ml
Now,
Density of metal object = [tex]\frac{Mass}{v\\olume}[/tex]
= [tex]\frac{20}{27}[/tex]
= 0.74 gm / ml
As, 1ml = 1[tex]cm^{3}[/tex]
Therefore ,
Density of metal = 0.74 gm/[tex]cm^{3}[/tex]
Hence, The density of the metal object is 0.74 gm/[tex]cm^{3}[/tex] .
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