In JEE_Mains 2014 , CBSE asked an problem which doesn't have any correct alternative . And Most surprising thing is tat they Did not give bonus marks to that problem!
So Do you know what is reason behind this ? Is they used some approximation ? If so then what was that ? How we can calculate that approximation !
Answer::(Given by CBSE ) JEE_mains have finally said that answer is Option -3 i.e . is correct . They did not give Bonous marks.
Expected Solution:: Since no data of bubble is given , So we simply Used that at this time , just before detachment, Surface tension force should balanced buoyant force:
Recently I gave JEE_Mains 2014 paper at home for Practice , and this question Baffles me again !
Please This is open discussion , So Please tell how they approximate answer as option-C ? And what are other different approaches to this Problem ? Please share everything you know about this problem ! Even My teachers says that some-one of CBSE used some approximate and just brute force method to proove this approxiation , Really I want to know about such approximations if it exist !