Properties of Matter 1 Question 11
11. The pressure of a medium is changed from $1.01 \times 10^{5} Pa$ to $1.165 \times 10^{5} Pa$ and change in volume is $10 %$ keeping temperature constant. The bulk modulus of the medium is
(a) $204.8 \times 10^{5} Pa$
(b) $102.4 \times 10^{5} Pa$
(c) $51.2 \times 10^{5} Pa$
(d) $1.55 \times 10^{5} Pa$
$(2005,2 M)$
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Answer:
Correct Answer: 11. (d)
Solution:
- From the definition of bulk modulus, $B=\frac{-d p}{(d V / V)}$
Substituting the values, we have
$$ B=\frac{(1.165-1.01) \times 10^{5}}{(10 / 100)}=1.55 \times 10^{5} Pa $$
