JEE Exam  >  JEE Questions  >  A small soap bubble of radius 4cm is trapped ... Start Learning for Free
A small soap bubble of radius 4cm is trapped inside another bubble of radius 6cm without any contact. Let P2 be the pressure inside the inner bubble and P0 the pressure outside the outer bubble. Radius of another bubble with pressure difference P2 – P0 between its inside and outside would be :
  • a)
    2.4cm
  • b)
    12cm
  • c)
    4.8cm
  • d)
    6cm
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A small soap bubble of radius 4cm is trapped inside another bubble of ...
To find the radius of the outer bubble with pressure difference P2, we can use the Laplace's law for pressure inside a spherical bubble:

P = 2T/R

Where P is the pressure inside the bubble, T is the surface tension, and R is the radius of the bubble.

For the inner bubble with radius 4 cm, the pressure P2 can be calculated as follows:

P2 = 2T/R2

Where R2 is the radius of the inner bubble.

For the outer bubble with radius R, the pressure P0 can be calculated as follows:

P0 = 2T/R

Since the inner bubble is trapped inside the outer bubble without any contact, the pressure inside the outer bubble is equal to the pressure inside the inner bubble:

P0 = P2

Therefore, we can equate the two equations:

2T/R = 2T/R2

Simplifying the equation, we get:

R/R2 = 1

This means that the ratio of the radius of the outer bubble to the radius of the inner bubble is 1. Therefore, the radius of the outer bubble is also 4 cm.
Free Test
Community Answer
A small soap bubble of radius 4cm is trapped inside another bubble of ...



r = 2.4cm 

Explore Courses for JEE exam
Question Description
A small soap bubble of radius 4cm is trapped inside another bubble of radius 6cm without any contact.Let P2 be the pressure inside the inner bubble and P0 the pressure outside the outer bubble. Radius of another bubble with pressure difference P2 – P0 between its inside and outside would be :a)2.4cmb)12cmc)4.8cmd)6cmCorrect answer is option 'A'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A small soap bubble of radius 4cm is trapped inside another bubble of radius 6cm without any contact.Let P2 be the pressure inside the inner bubble and P0 the pressure outside the outer bubble. Radius of another bubble with pressure difference P2 – P0 between its inside and outside would be :a)2.4cmb)12cmc)4.8cmd)6cmCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A small soap bubble of radius 4cm is trapped inside another bubble of radius 6cm without any contact.Let P2 be the pressure inside the inner bubble and P0 the pressure outside the outer bubble. Radius of another bubble with pressure difference P2 – P0 between its inside and outside would be :a)2.4cmb)12cmc)4.8cmd)6cmCorrect answer is option 'A'. Can you explain this answer?.
Solutions for A small soap bubble of radius 4cm is trapped inside another bubble of radius 6cm without any contact.Let P2 be the pressure inside the inner bubble and P0 the pressure outside the outer bubble. Radius of another bubble with pressure difference P2 – P0 between its inside and outside would be :a)2.4cmb)12cmc)4.8cmd)6cmCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE. Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of A small soap bubble of radius 4cm is trapped inside another bubble of radius 6cm without any contact.Let P2 be the pressure inside the inner bubble and P0 the pressure outside the outer bubble. Radius of another bubble with pressure difference P2 – P0 between its inside and outside would be :a)2.4cmb)12cmc)4.8cmd)6cmCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A small soap bubble of radius 4cm is trapped inside another bubble of radius 6cm without any contact.Let P2 be the pressure inside the inner bubble and P0 the pressure outside the outer bubble. Radius of another bubble with pressure difference P2 – P0 between its inside and outside would be :a)2.4cmb)12cmc)4.8cmd)6cmCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for A small soap bubble of radius 4cm is trapped inside another bubble of radius 6cm without any contact.Let P2 be the pressure inside the inner bubble and P0 the pressure outside the outer bubble. Radius of another bubble with pressure difference P2 – P0 between its inside and outside would be :a)2.4cmb)12cmc)4.8cmd)6cmCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of A small soap bubble of radius 4cm is trapped inside another bubble of radius 6cm without any contact.Let P2 be the pressure inside the inner bubble and P0 the pressure outside the outer bubble. Radius of another bubble with pressure difference P2 – P0 between its inside and outside would be :a)2.4cmb)12cmc)4.8cmd)6cmCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A small soap bubble of radius 4cm is trapped inside another bubble of radius 6cm without any contact.Let P2 be the pressure inside the inner bubble and P0 the pressure outside the outer bubble. Radius of another bubble with pressure difference P2 – P0 between its inside and outside would be :a)2.4cmb)12cmc)4.8cmd)6cmCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice JEE tests.
Explore Courses for JEE exam

Top Courses for JEE

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev