Question

There are four bodies A, B , C and D having the densities 1.2g/cm3, 2.8g/cm3, 0.9g/cm3 and 13.8g/cm3. which will float on the water? *​

Answer 1

Which of body the following will sink or float on w(Density of water =1gCm

−3

).

(a) body A having density 500 kg m

−3

(b) body B having density2520kg/m

3

(c) body C having density1100kg/m

3

(d) body D having density0.85g/m

3

Medium

Solution

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The density of water is . An object will float or sink it depends on its density. An object having density greater than water will sink while object having density less than water will float.

(a) Density of body A is0.5 g/cm

3

Its density is less than water, it will float.

(b) Density of body B is 2.528 g/cm

3

Its density is more than water, it will sink.

(c) Density of body C is 1.1 g/cm

3

Its density is more than water, it will sink.

(c) Density of body D is 0.85 g/cm

3

.

Its density is less than water, it will float.

Hence, body A and D will float while body B and C will sink.