9film has top and bottom surface thats it !
in case of a soap film it s said tht surface tension act at exactly two surfaces cud someone elaborate this thing . i m unable to visualize the things
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6 Answers
1ya t i know bt i mean wud air be also present at the bottom surface of film
1one more doubt...
They hav given a problem, whr they hav given atm pressure, height of the lake, rad of buble at the bottom of the lake,dens of water....
what is the dens when it reaches the surface....
but the form includes surface tens.... how to calculate this??
1yes there will b air under the surface also.....
u can imagine the soap film in the hole...
9sri richa was asking for soap film and not bubble!!!
sri in ur Q are they askin dens or volume of bubble ??