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A wire forming a loop is dipped into soap solution and taken o
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A wire forming a loop is dipped into soap solution and taken out, so that a film of soap solution is formed. A loop of long thread is gently put on the film and the film is pricked with a needle inside the loop. The thread loop takes the shape of a circle. Find the tension in the thread. Surface tension of soap solution .

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Book:

Mechanics Volume 2 (DC Pandey)

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A wire forming a loop is dipped into soap solution and taken out, so that a film of soap solution is formed. A loop of long thread is gently put on the film and the film is pricked with a needle inside the loop. The thread loop takes the shape of a circle. Find the tension in the thread. Surface tension of soap solution .
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Practice questions from Mechanics Volume 2 (DC Pandey)

Question 1
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Two identical soap bubbles each of radius and of the same surface tension combine to form a new soap bubble of radius . The two bubbles contain air at the same temperature. If the atmospheric pressure is then find the surface tension of the soap solution in terms of and . Assume process is isothermal.
Topic

Topic:

Mechanical Properties of Fluids

Book

Book:

Mechanics Volume 2 (DC Pandey)

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Question 2
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A thin metal disc of radius floats on a liquid surface and bends the surface downwards along the perimeter making an angle with vertical edge of the disc. If the disc displaces a weight of liquid and surface tension of liquid is , then the weight of metal disc is
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Mechanical Properties of Fluids

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Book:

Mechanics Volume 2 (DC Pandey)

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Question 3
Medium
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A thread is tied slightly loose to a wire frame as in figure and the frame is dipped into a soap and taken out. The frame is completely covered with the film. When the portion is punctured with a pin, the thread
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Mechanical Properties of Fluids

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Book:

Mechanics Volume 2 (DC Pandey)

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Question 4
Medium
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Mechanical Properties of Fluids

Book

Book:

Mechanics Volume 2 (DC Pandey)

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Question Text
A wire forming a loop is dipped into soap solution and taken out, so that a film of soap solution is formed. A loop of long thread is gently put on the film and the film is pricked with a needle inside the loop. The thread loop takes the shape of a circle. Find the tension in the thread. Surface tension of soap solution .
TopicMechanical Properties of Fluids
SubjectPhysics
ClassClass 11
Answer TypeText solution:1
Upvotes120