JEE Advanced 2008Paper 2
- Exam
- JEE Advanced
- Year
- 2008
- Paper
- Paper 2
- Subject
- Physics
- Chapter
- Mechanical Properties of Fluids
JEE Advanced 2008 · Paper 2 · Physics · Mechanical Properties of Fluids
A glass tube of uniform internal radius (r) has a valve separating...
A glass tube of uniform internal radius has a valve separating the two identical ends. Initially, the valve is in a tightly closed position. End 1 has a hemispherical soap bubble of radius . End 2 has sub-hemispherical soap bubble as shown in figure. Just after opening the valve,
Options
- Aair from end 1 flows towards end 2. No change in the volume of the soap bubbles
- Bair from end 1 flows towards end 2. Volume of the soap bubble at end 1 decreases
- Cno change occurs
- Dair from end 2 flows towards end 1. Volume of the soap bubble at end 1 increases
Correct answer
B. air from end 1 flows towards end 2. Volume of the soap bubble at end 1 decreases
Step-by-step solution
\Delta p_1=\frac{4 T}{r_1}\Delta p_2=\frac{4 T}{r_2}$Air will flow from 1 to 2 and volume of bubble at end- 1 will decrease.
Therefore, correct option is (b).