Assertion (A): Gun barrels are made of thick cylindrical tubes “shrunk fit” one inside the other to withstand high internal explosive pressure.
Reason (R): The hoop stress induced due to shrink fit in the inner cylindrical tube is compressive in nature whereas the hoop stress due to internal explosive pressure in the same tube is tensile in nature.
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true