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NEET 2017 · Bulk Modulus & Compressibility

Bulk Modulus & Compressibility question from NEET 2017

Q19NEET 2017Medium

Bulk Modulus & Compressibility

The bulk modulus of a spherical object is 'B'. If it is subjected to uniform pressure 'P', the fractional decrease in radius is

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Answer: (c)

$V = \frac{4}{3}\pi r^3 \Rightarrow \frac{\Delta V}{V} = 3\frac{\Delta r}{r}$
$\frac{\Delta V}{V} = \frac{p}{B}$
$\frac{\Delta r}{r} = \frac{p}{3B}$
So the answer is (c).

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