NEET Exam > NEET Questions > Surface tension of a solution is 30 × 10-2 N...
Start Learning for Free
Surface tension of a solution is 30 × 10-2 N/m.
The radius of the soap bubble is 5 cm. The surface energy of soap bubble is
- a)1.8 × 101 J
- b)1.8 × 102 J
- c)1.0 × 10-1 J
- d)1.8 × 10-2 J
Correct answer is option 'D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
Surface tension of a solution is 30 × 10-2 N/m.The radius of the soap...
Surface Tension and Soap Bubble
Surface tension is a property of liquids that arises due to the cohesive forces between the molecules at the surface. It is defined as the force per unit length acting perpendicular to the surface.
A soap bubble is a thin film of liquid that encloses a volume of air or gas. It is formed by dipping a frame into a soap solution and then removing it, leaving behind a thin layer of soap film.
Given Data:
Surface tension of the solution = 30 × 10^-2 N/m
Radius of the soap bubble = 5 cm
Formula:
The surface energy of a soap bubble can be calculated using the formula:
Surface Energy (E) = 2πrT
Where,
E = Surface Energy
r = Radius of the soap bubble
T = Surface Tension
Calculation:
Given that the surface tension (T) is 30 × 10^-2 N/m and the radius (r) is 5 cm, we need to convert the radius to meters before substituting the values into the formula.
Radius of the soap bubble in meters = 5 cm = 5 × 10^-2 m
Substituting the values into the formula:
Surface Energy (E) = 2π(5 × 10^-2)(30 × 10^-2)
= 2π(5 × 10^-2)(30 × 10^-2)
= 2π(150 × 10^-4)
= 2 × 3.14 × 150 × 10^-4
= 942 × 10^-4
= 0.942 × 10^-1 J
Therefore, the surface energy of the soap bubble is 0.942 × 10^-1 J.
Answer:
Option d) 1.8 × 10^-2 J
Surface tension is a property of liquids that arises due to the cohesive forces between the molecules at the surface. It is defined as the force per unit length acting perpendicular to the surface.
A soap bubble is a thin film of liquid that encloses a volume of air or gas. It is formed by dipping a frame into a soap solution and then removing it, leaving behind a thin layer of soap film.
Given Data:
Surface tension of the solution = 30 × 10^-2 N/m
Radius of the soap bubble = 5 cm
Formula:
The surface energy of a soap bubble can be calculated using the formula:
Surface Energy (E) = 2πrT
Where,
E = Surface Energy
r = Radius of the soap bubble
T = Surface Tension
Calculation:
Given that the surface tension (T) is 30 × 10^-2 N/m and the radius (r) is 5 cm, we need to convert the radius to meters before substituting the values into the formula.
Radius of the soap bubble in meters = 5 cm = 5 × 10^-2 m
Substituting the values into the formula:
Surface Energy (E) = 2π(5 × 10^-2)(30 × 10^-2)
= 2π(5 × 10^-2)(30 × 10^-2)
= 2π(150 × 10^-4)
= 2 × 3.14 × 150 × 10^-4
= 942 × 10^-4
= 0.942 × 10^-1 J
Therefore, the surface energy of the soap bubble is 0.942 × 10^-1 J.
Answer:
Option d) 1.8 × 10^-2 J
Free Test
FREE
| Start Free Test |
Community Answer
Surface tension of a solution is 30 × 10-2 N/m.The radius of the soap...
Surface tension of solution
(T) = 3 0 × 10-12 N /m Radius of the soap bubble (r) = 5 cm = 0.05 m
Since, the bubble has two spherical surface, hence, ΔA = 2 × surface area = 2 × 4πr2
Therefore, surface energy = T × ΔA
= 30 × 10-2 × 2 × [4π (0.05)2]
= 1.8 × 10-2J
Attention NEET Students!
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.
|
Explore Courses for NEET exam
|
|
Similar NEET Doubts
Top Courses for NEETView all
Surface tension of a solution is 30 × 10-2 N/m.The radius of the soap bubble is 5 cm. The surface energy of soap bubble isa)1.8 × 101 Jb)1.8 × 102 Jc)1.0 × 10-1 Jd)1.8 × 10-2 JCorrect answer is option 'D'. Can you explain this answer?
Question Description
Surface tension of a solution is 30 × 10-2 N/m.The radius of the soap bubble is 5 cm. The surface energy of soap bubble isa)1.8 × 101 Jb)1.8 × 102 Jc)1.0 × 10-1 Jd)1.8 × 10-2 JCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Surface tension of a solution is 30 × 10-2 N/m.The radius of the soap bubble is 5 cm. The surface energy of soap bubble isa)1.8 × 101 Jb)1.8 × 102 Jc)1.0 × 10-1 Jd)1.8 × 10-2 JCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Surface tension of a solution is 30 × 10-2 N/m.The radius of the soap bubble is 5 cm. The surface energy of soap bubble isa)1.8 × 101 Jb)1.8 × 102 Jc)1.0 × 10-1 Jd)1.8 × 10-2 JCorrect answer is option 'D'. Can you explain this answer?.
Surface tension of a solution is 30 × 10-2 N/m.The radius of the soap bubble is 5 cm. The surface energy of soap bubble isa)1.8 × 101 Jb)1.8 × 102 Jc)1.0 × 10-1 Jd)1.8 × 10-2 JCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Surface tension of a solution is 30 × 10-2 N/m.The radius of the soap bubble is 5 cm. The surface energy of soap bubble isa)1.8 × 101 Jb)1.8 × 102 Jc)1.0 × 10-1 Jd)1.8 × 10-2 JCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Surface tension of a solution is 30 × 10-2 N/m.The radius of the soap bubble is 5 cm. The surface energy of soap bubble isa)1.8 × 101 Jb)1.8 × 102 Jc)1.0 × 10-1 Jd)1.8 × 10-2 JCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Surface tension of a solution is 30 × 10-2 N/m.The radius of the soap bubble is 5 cm. The surface energy of soap bubble isa)1.8 × 101 Jb)1.8 × 102 Jc)1.0 × 10-1 Jd)1.8 × 10-2 JCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of Surface tension of a solution is 30 × 10-2 N/m.The radius of the soap bubble is 5 cm. The surface energy of soap bubble isa)1.8 × 101 Jb)1.8 × 102 Jc)1.0 × 10-1 Jd)1.8 × 10-2 JCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Surface tension of a solution is 30 × 10-2 N/m.The radius of the soap bubble is 5 cm. The surface energy of soap bubble isa)1.8 × 101 Jb)1.8 × 102 Jc)1.0 × 10-1 Jd)1.8 × 10-2 JCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Surface tension of a solution is 30 × 10-2 N/m.The radius of the soap bubble is 5 cm. The surface energy of soap bubble isa)1.8 × 101 Jb)1.8 × 102 Jc)1.0 × 10-1 Jd)1.8 × 10-2 JCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Surface tension of a solution is 30 × 10-2 N/m.The radius of the soap bubble is 5 cm. The surface energy of soap bubble isa)1.8 × 101 Jb)1.8 × 102 Jc)1.0 × 10-1 Jd)1.8 × 10-2 JCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Surface tension of a solution is 30 × 10-2 N/m.The radius of the soap bubble is 5 cm. The surface energy of soap bubble isa)1.8 × 101 Jb)1.8 × 102 Jc)1.0 × 10-1 Jd)1.8 × 10-2 JCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice NEET tests.
|
|
Explore Courses for NEET exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup