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Units and Dimensions

Statement I :...

Question

Statement I : Equal volumes of two different substances have equal masses.

Statement II : The density of a piece of gold will change by changing its size or shape.

Both statement I and statement II are incorrect.

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Statement I is incorrect and statement II is correct.

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Statement I is correct and statement II is incorrect.

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Both statement I and statement II are correct.

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Solution

The correct option is A Both statement I and statement II are incorrect.
The correct option is C.

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Similar questions

Write true or false for each statement:

(a) Equal volumes of the two different substances have equal masses.

(b) The density of a piece of brass will change by changing its size or shape.

(d) Relative density of water is 1.0.

(e) Relative density of a substance is expressed in g $c m^{-} 3$ .

(f) When a body is immersed in a liquid, the buoyant force experienced by the body is equal to the volume of the displaced by it.

(g) A body experiences the same buoyant force while floating in water or alcohol.

(h) A body experiences the same buoyant force when it floats or sinks in water.

(i) A body floats in a liquid when its weight becomes equal to the weight of the liquid displaced by its submerged part.

(j) A body while floating sinks in a liquid of low density than in high density.

Select the correct alternative:

(a) The correct relation is

(i) Density = Mass $\times$ Volume

(ii) Mass = Density $\times$ Volume

(iii) Volume =Denstity $\times$ Mass

(iv) Density = Mass + Volume

(b) The relative density of alcohol is 0.8. Its density is

(i) 0.8 (ii) 800 kg $m^{-} 3$

(iii) 800 g $c m - 3$ (iv) 0.8 kg $m^{-} 3$

(i) 60.8 g (ii) 75 g

(iii) 48 g (iv) 0.013 g

(d) The density of aluminium is 2.7 g $c m^{-} 3$ and that of brass 8.4 g $c m^{-} 3$ . The correct statement is :

(i) Equal masses of aluminium and brass have equal volumes

(ii) The mass of a certain volume of brass is more than the mass of equal volume of aluminium

(iii) The volume of a certain mass of brass is more than the volume of equal mass of aluminium

(iv) Equal volumes of aluminium and brass have equal masses.

(e) A density bottle has a marking 25 mL on it. It means that :

(i) the mass of density bottle is 25g

(ii) the density bottle will store 25 mL of any liquid it

(iii) the density bottle store 25 mL.of water, but more volume of liquid denser than water.

(iv) the density bottle will store 25 mL of water but more volume of liquid lighter than water.

(f) The correct statement is :

(i) The buoyant force on a body is equal to the volume of the liquid displaced by it.

(ii) The buoyant force on a body is equal to the volume of the body

(iii) The buoyant force on a body is equal to the weight of the liquid displaced by it.

(iv) The buoyant force on a body is always equal to the weight of the body.

(g) A piece of wood floats on water. The buoyant force on wood will be :

(i) zero

(ii) more than the weight of the wood piece

(iii) equal to the weight of the wood piece.

(iv)less than the weight of the wood piece.

(h) The weight of a body is more than the buoyant force experienced by it, due to a liquid. The body will :

(i) sink

(ii) float with its some part outside the liquid

(iii) float just below the surface of liquid

(iv) float with whole of its volume above the surface of liquid.

Write true or false :

Equal volumes of two different substances have equal masses.

Q. Equal volumes of different substances having same densities:

Q. Give reasons as to why equal masses of different substances have different volumes.

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Statement I : Equal volumes of two different substances have equal masses.​ Statement II : The density of a piece of gold will change by changing its size or shape.

The correct option is A Both statement I and statement II are incorrect.​The correct option is C.

Statement I : Equal volumes of two different substances have equal masses.

Statement II : The density of a piece of gold will change by changing its size or shape.

The correct option is A Both statement I and statement II are incorrect.
The correct option is C.