1.

The mass of a block is 87.2 g and its volume is 25 cm^(3). Its density upto correct significant figures is

Answer»

`3.488 g cm^(-3)`
` 3.5 g cm^(-3)`
`3.48 g cm^(-3)`
`3.4 g cm^(-3)`

Solution :`"Density"= ("Mass")/("Volume")= (87.2)/(25)= 3.488 cm^(-3)`
As mass has three SIGNIFICANT FIGURES and volume has two significant figures erefore as per rule, density will have two significant figures. ROUNDING off, we get, `"Density" = 3.5 g cm^(-3)`


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