Question

2) HOW MUCH AMOUNT OF WORK IS DONE
IN FORMING A SOAP BUBBLE OF RADIUS​

Answer 1

Answer:

Explanation:

2) HOW MUCH AMOUNT OF WORK IS DONE IN FORMING A SOAP BUBBLE OF RADIUS​

The amount of work done in forming a soap bubble of radius r=1cm (surface tension T=3×10-2N/m)

Answer 2

Explanation:

We know that a bubble has two surfaces in contact with air, so the total surface area of the bubble will be

=2×(4πR2)=8πR2Now, work done=Surface tension × Increase in surface area=T×(8πR2−0)=8πR2T