Question

10. The radius of bubble__________when it comes from bottom of lake to the top.
(A)increases (B)decreases (C)does not change (D)becomes zero

Answer 1

Answer:

The pressure will be greater at the bottom than at the top. So the air bubble moves from the bottom to the top i.e., from higher to lower pressure. Further in coming from bottom to top, the pressure decreases and hence volume increases (By Boyle's law, PV= constant), thus radius also increases.