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The mass and volume of a body are 4.237 ...

The mass and volume of a body are 4.237 g and `2.5cm^(3)` respectively. The density of the material of the body in correct significant figures is

A

1.6048 g `cm^(-3)`

B

1.69 g `cm^(-3)`

C

1.7 g `cm^(-3)`

D

1.695 g `cm^(-3)`

Text Solution

Verified by Experts

The correct Answer is:
C
In multiplication or division, the final resulat should retain as many significant figures as are there in the original numnber with the least significant figures. In this question, density should be reported to two significant figure.
density`=(4.237g)/(2.5cm^3)=1.6948`
As rounding off the number, we get density`=1.7`
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Knowledge Check

  • The mass and volume of a body are 4.237 g and 2.5 vm^(3) , respectively. The density of the material of the body in correct significant figures is

    A
    `1.6048 g cm^(-3)`
    B
    `1.69 g cm^(-3)`
    C
    `1.7 g cm^(-3)`
    D
    `1.695 g cm^(-3)`

  • The mass and volume of a body are 4.237 g and 2.5cm^3, respectively. The density of the meterial of the body in correct significant figures is

    A
    `1.6048 g cm^3`
    B
    `1.69g cm^(-3)`
    C
    `1.7 g cm^(-3)`
    D
    `1.695g cm^(-3)`

  • An object of mass 4.237 g occupies a volume 1.72 cm^3 . The density of the object to appropriate significant figures is -

    A
    `2.46 "g cm"^(-3)`
    B
    `2.463 "g cm"^(-3)`
    C
    `2.5 "g cm"^(-3)`
    D
    `2.50 "g cm"^(-3)`

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