A meter washer has a hole of diameter `d_(1)` and external diameter `d_(2)`, where `d_(2)=3d_(1)`. On heating , `d_(2)` increases by `0.3%`. Then `d_(1)` will :-

A metal washer has a hole of diameter d_(1) and an external diameter d_(2) such that d_(2)=3d_(1) . If on heating d_(2) increases by 0.3% then d_(1)

Two holes of unequal diameters d_(1) and d_(2)(d_(1)gtd_(2)) are cut in metal sheet is heated

Two holes of unequal diameters d_(1) and d_(2)(d_(1)gt d_(2)) are cut in metal sheet is heated

Two holes of unequal diameters d_(1) and d_(2)(d_(1)gt d_(2)) are cut in metal sheet is heated

Two holes of unequal diameters d_(1)andd_(2)" "(d_(1)gtd_(2))d_(2) are cut in metal sheet. If the sheet is heated

A spherical balloon contains air at pressure P_(1) and is placed in vacuum. It has an initial diameter of D_(1) . The balloon is heated until its diameter becomes D_(2) = 2D_(1) . It is known that pressure in the balloon is proportional to its diameter. Calculate the work done by the gas in expansion.