(A) : For a perfectly incompressible substance, bulkmodulus is infinity (R) : Bulkmodulus of elasticity is inversely proportional to change in volume.

(A) : For a perfectly incompressible substance, bulkmodulus is infinit

1.	(A) : For a perfectly incompressible substance, bulkmodulus is infinity (R) : Bulkmodulus of elasticity is inversely proportional to change in volume.
Answer» Both .A. and .R. are TRUE and .R. is the correct EXPLANATION of .A. Both .A. and .R. are true and .R. is not the correct explanation of .A. A. is true but .R. is false A. is false but .R. is true Answer :1