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A glass tube of uniform internal radius(...

A glass tube of uniform internal radius(r) has a valve separating the two identical ends. Intially, the valve is in a tightly closed position. End 1 has a hemispherical soap bubble or radius r. End 2 has sub-hemispherical soap bubble as shown in figure. Just after opening the valve,

A

Air from end `1` flows towards end `2`. There is no change in the volume of the soap bubble.

B

Air from end `1` flows towards end `2`. Volume of the soap bubble at end `1` decreases.

C

No change occurs.

D

Air from end `2` flows towards end `1`. Volume of the soap bubble at end `1` increases.

Text Solution

Verified by Experts

The correct Answer is:
B
`/_\p_(1)=(4T)/(r_(1))` and `/_\p_(2)=(4T)/(r_(2))`
`r_(1)ltr_(2):./_\p_(1)gt/_\p_(2)`
Therefore air will flow from `1` to `2` and volume of bubble at end `1` will increase.
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