Advertisement Remove all ads

Advertisement Remove all ads

Advertisement Remove all ads

Sum

The length and the radius of a cylinder measured with a slide callipers are found to be 4.54 cm and 1.75 cm respectively. Calculate the volume of the cylinder.

Advertisement Remove all ads

#### Solution

Length of the cylinder, *l* = 4.54 cm

Radius of the cylinder, *r* = 1.75 cm

Volume of the cylinder, *V* = `pi r^2l=(pi)xx ( 4.54 ) xx ( 1.75 )^2`

The minimum number of significant digits in a particular term is three. Therefore, the result should have three significant digits, while the other digits should be rounded off.

∴ Volume, *V* = `pi r^2l`

= (3.14) × (1.75) × (1.75) × (4.54)

= 43.6577 cm^{3}

Since the volume is to be rounded off to 3 significant digits, we have:*V* = 43.7 cm^{3}

Concept: Nature of Physical Laws

Is there an error in this question or solution?