Question

You are provided with a glass stopper and a
measuring cylinder. How will you proceed to find
the density of stopper? Diagrams not required. It should be convincing. ​

Answer 1

Answer:

The mass of the solid is determined very accurately by a physical balance. Let it be m grams.

In order to find the volume, take a measuring cylinder and pour water in it. Record the volume of water from the graduations marked on measuring cylinder. Let it be 50 cm3.

Now tie the given solid to a fine thread and lower it gently in the measuring cylinder, such that it is completely immersed in water.

Record the new level of water. Let it be 75 cm3. Therefore

Volume of the solid=(75-50)cm3

= 25 cm3= V cm3 (suppose)

Knowing the mass and the volume of the solid the density can be calculated by the formula:

Density = mass/volume=m/V g/cm3