In the given figure, when temperature is increased then which of the following increases

(A) `R_(1)` (B) `R_(1)` (C )` R_(2) -R_(1)`

Explanation

All of the above
……represents expanded Boundary
………represents original Boundary
As the intermolecular distance between atoms increases on heating heance the inner and outer perimeter increases. Also if the atomic arrangement in radial direction is observed then we can say that it also increases hence all `A, B, C` are true.