Assertion: Bulk modulus of elasticity (K) represents incompressibility of the materialReason : Bulk modulus of elasticity is proportional to change in pressure.
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a
If both assertion and reason are true and reason is a true 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 both assertion and reason are false
answer is C.
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Detailed Solution
Bulk modulus of elasticity measures how good the body is to regain its original voluume on being compressed. Therefore, it represents incompressibiltiy of the material, K = -PV∆V where P is increase in pressure, ∆V is change in volume.