Question

If P is the gauge pressure within a spherical droplet, then guage pressure within a bubble of the same fluid and of same size will be

• A. P/4
• B. P/2
• C. P
• D. 2P

Answer 1

The correct option is D 2P

P = Gauge pressure within a spherical droplet.

$P=\frac{4\sigma }{d}fordroplet$

$P_{bubble}=\frac{8\sigma }{d}forbubble$

$P_{bubble}=2P_{droplet}$

Gauge pressure within a bubble of the same fluid and of same size will be two times the gauge pressure within a spherical droplet.