Question

Select One Option Correct from the following : A glass tube of uniform internal radius r 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 r. End 2 has sub-hemispherical soap bubble as shown in the figure. Just after opening the valve,
(A)air from end 1 flows towards end 2. No change in the volume of the soap bubbles.
(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.

Answer 1

d option is correct I think

Answer 2

Select One Option Correct from the following : A glass tube of uniform internal radius r 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 r. End 2 has sub-hemispherical soap bubble as shown in the figure. Just after opening the valve,

(A)air from end 1 flows towards end 2. No change in the volume of the soap bubbles.

(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.