Home
Class 11
PHYSICS
A glass tube of uniform internal radius ...

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 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. Vole of the soap bubble at end 1 decreases

C

No change occurs

D

Air from end 2 flows towards end 1 decreases the soap bubble at end 1 increases

Text Solution

Verified by Experts

The correct Answer is:
B
End 1 has hemispherical soap bubble, hence its radius is r which is same as radius of tube. Pressure inside bubble 1 can be written as follows: `P_(1)=P_(0) +(4T)/(r) ...........(i)`
Let radius of bubble at end 2 is R then pressure inside bubble 2 can be written as follows:
`P_(2)=P_(0)=(4T)/(4) ......(ii)`
Sincer `lt R," hence "P_1 gt P_2,` hence air from end 1 flows towards end 2 and volume of bubble 1 decreases.
Promotional Banner

Topper's Solved these Questions

  • MECHANICAL PROPERTIES OF FLUIDS

    MODERN PUBLICATION|Exercise Competition File (C. MCQ With More Than One Correct Answers)|12 Videos

  • MECHANICAL PROPERTIES OF FLUIDS

    MODERN PUBLICATION|Exercise Competition File (D. MCQ Based On A Given Passage/Comprehension)|16 Videos

  • MECHANICAL PROPERTIES OF FLUIDS

    MODERN PUBLICATION|Exercise Competition File (JEE (Main) & Other State Boards For Engineering Entrance)|23 Videos

  • MATHEMATICAL TOOLS

    MODERN PUBLICATION|Exercise PRACTICE PROBLEMS (10)|12 Videos

  • MOTION IN A PLANE

    MODERN PUBLICATION|Exercise Chapter Practice Test|15 Videos

Similar Questions

Explore conceptually related problems

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,

Two soap bubbles of radius R_1 and R_2 combine isothermally to form a new soap bubble. Find radius of new soap bubble

Two soap bubbles of radii r_(1) and r_(2) are attached as shown. Find the radius of curvature of the common film ACB.

Two spherical soap bubbles of radii r_1 and r_2 in vacuume collapse under isothermal condition. The resulting bubble has radius R such that

Two soap bubbles of radius r_(1) and r_(2) combine. Find radius of curvature of the common surface separating them.

Two spherical soap bubbles of a radii 1 cm and 2 cm vacuum coalesce under isothermal conditions . The resultant bubble has a radius of

An isolated and charged spherical soap bubble has a radius 'r' and the pressure inside is atmospheric. If 'T' is the surface tension of soap solution, then charge on drop is:

A soap bubble A of radius 0.03 m and another bubble B of radius 0.04 m are brought together, so that the combined bubble has a common interface of radius r, then the value of r is

A solid sphere having radius R and uniform charge density rho has a cavity of radius R/2 as shown in figure.Find the value of |E_A /E_B|