The amount of work done in blowing a soap bubble such that its diameter increases from d to D is (T=surface tension of the solution)

Work done is blowing a soap bubble of diameter 2 cm , is

The amount of the work done in blowing a soap bubble of radius r and surface tension sigma , is:

The ration of the work done in blowing the soap bubbles of diameter in the ratio 4 : 5 is ,

The amount of work done in blowing up a soap bubble of radius 2 cm is [Given surface tension of soap solution = 4 xx 10^(-2) N m^(-1) ]

The amount of work done in blowing up a soap bubble of radius 2 cm is [Given surface tension of soap solution = 4 xx 10^(-2) N m^(-1) ]