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(c) A and D

(d) B and D

3. Choose the correct unit for the relative density among the following:

(a) kg/cm

(b) unitless

(c) kg/cm

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(d) kg/m

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4. An object having mass equal to 350 g occupies 200 cm of the space. When this
object is thrown into a river what will be the condition of this object there? (Density of
water = 1 g/ cm )
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(a) It will float on the surface of water

(b) It will float fully submerged in the liquid

(c) It will sink in the liquid

(d) It will float partially submerged in the liquid

5. An object is put in three liquids having different densities, one by one. The object
floats with 1/9, 2/11 and 3/7 parts of its volume outside the surface of liquids of densities
d1, d2 and d3 respectively. Which of the following is the correct order of the densities of
three liquids?

(a) d1 > d2 > d3

(b) d2 > d3 > d1

(c) d1 < d2 < d3

(d) d3 > d2 > d1

6. If the mass of solid body is doubled, its density

(a) Becomes twice

(b) Becomes half

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