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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 meterial of the body in correct significant figures is

A

`1.6948gcm^(-3)`

B

`1.69gcm^(-3)`

C

`1.7gcm^(-3)`

D

`1.695gcm^(-3)`

Text Solution

Verified by Experts

The correct Answer is:
C
Here, mass, `m=4.237g`
Volume, `V=2.5cm^(3)`
Density `rho=("mass")/("Volume")=(4.237g)/(2.5cm^(3))=1.6948cm^(-3)`
As mass has 4 significant figures and volume has 2 significant figures, therefore, as per rule, density will have only two significant figures. Rounding off to two significant figures, we get `rho=1.7g" "cm^(-3)`
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