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The densities...

Question

The densities of objects P,Q,R and S are $200 k g / m^{3}$ , $450 k g / m^{3}$ , $1200 k g / m^{3}$ and $785 k g / m^{3}$ respectively. Which one of these objects will sink when dipped in a bucket of water?

A

P

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B

Q

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C

R

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D

S

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Solution

The correct option is B R
Answer is C.
According to the laws of flotation, the more denser liquid will sink below and the less dense material will float.
In this case, the object R has the maximum density of $1200 k g / m^{3}$ .
Therefore, object R will sink when dipped in a bucket of water.

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