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Question

The bulk modulus of water if its volume changes from 100 litre to 99.5 litre under pressure of 100atm is then
(Take 1atm=105Nm2)

A
2×107Nm2
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B
2×108Nm2
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C
2×109Nm2
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D
2×1010Nm2
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Solution

The correct option is C 2×109Nm2
Given:
Here, P=100atm=100×105Nm2=107Nm2;ΔV=(99.5100)litre=0.5litre;V=100litres
According to the definition of bulk modulus,
B=PΔV/V

B=107Nm2(0.5/100litre)=2×109Nm2

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