r1 = 4.5cm , P1 =is the total pressure on the bubble at a depth of 12m from the surface. P1 = 12 + 10.34 =22.34m V1 = 43π× r13 = 43×π×4.53cm3 P2 = 10.34m
V2 = 43πr23
from boyles law:
P1V1 = P2V2 ⇒ 22.34× 43×π×4.53 = 10.34 × 43×π×r23 ⇒ 22.34 × 4.53 = 10.34 × r23 ⇒ r23=3√196.88 ⇒ r2 = 5.82cm
