Question

Question ype:
Question No.25
The excess pressure due to surface tension inside a spherical drop is 6 units. If eight such drops
coalesce, the excess pressure inside the new drop is
1) 3 units
2) 6 units 3) 12 units 4) 48 units​

Answer 1

Explanation:

Answer for this is 3 units

We know that delta p=(2T)/R

Now volume of one drop is V

And new volume of 8 drops is V'

Equate is two, we get R'=2R

So we get delta p=2T/R' =3units