In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c ) If assertion is true but reason is false. (d) If assertion and reason are false. Q. Assertion: Bulk modulus of elasticity B represents incompressibility of the material Reason: `B=-(triangleP)/((triangleV)/(V))`, where symbols have their usual meaning.

In the following questions, a statement of assertion is followed by a

1.	In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c ) If assertion is true but reason is false. (d) If assertion and reason are false. Q. Assertion: Bulk modulus of elasticity B represents incompressibility of the material Reason: `B=-(triangleP)/((triangleV)/(V))`, where symbols have their usual meaning.
Answer» Correct Answer - B Bulk modulus of elasticity measures how good the body is to regain its original volume on being compressed. Therefore it represents incompressibility of the material Bulk modulus`B=-(triangleP)/((triangleV)/(V))=-((triangleP)V)/(triangleV)` Where `triangleP=` Change in pressure and `triangleV=` change in volume Hence, negative sign implies that when the pressure increases, volume decreases and vice-versa.

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