Question

How can you find the volume and hence density of a solid body which is heavier than and insoluble

Answer 1

Answer: To find the volume of a solid body with an irregular shape (not specified in the question but from the wording it probably is that otherwise volume = length x breadth x height and density = mass/volume) which is heavier than water and also insoluble in it, we need:-

1. a measuring cylinder

2. the object whose volume is to be found

3. some water

4. a string

5. a weight scale

Step 1: Measure the weight of the solid. For example lets say its 20 g.

Step 2: Fill the measuring cylinder with water.

Step 3: Measure the water level after pouring the water. That will be your V1. For example lets say its 100 ml.

Step 4: Tie a thread to the object.

Step 5: Submerge the object in the water of the measuring cylinder and make sure the object does not touch the surface of the water or the bottom of the measuring cylinder.

Step 6: Now measure the water level again while keeping the object submerged. For example lets say its 110 now. This will be your V2.

Step 7: Subtract V1 from V2, that is, V2 - V1. So in our example it will be 110 - 100 = 10 cm^3 (cm^3 is for centimeter cube). This will be the volume of the object.

Now to find the density:-

Density = Mass/Volume     (Now, our mass is 20 g and volume is 10 cm^3)

             = 20/10

             = 2 g/cm^3

Answer 2

I hope it will help you....