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Assertion :A large soap bubble expands while a small bubble sh
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Assertion :A large soap bubble expands while a small bubble shrinks, when they are connected to each other by a capillary tube.
Reason :The excess pressure inside bubble (or drop) is inversely proportional to the radius.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

C
Assertion is correct but Reason is incorrect

D
Both Assertion and Reason are incorrect

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Michael Discussed
Assertion :A large soap bubble expands while a small bubble shrinks, when they are connected to each other by a capillary tube.
Reason :The excess pressure inside bubble (or drop) is inversely proportional to the radius.
11 mins ago
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Text SolutionText solutionverified iconVerified

Since the excess pressure due to surface tension is inversely proportional to its radius, it follows that smaller the bubble, greater is the excess pressure. Thus, when the larger and the smaller bubbles are put in communication, air starts passing from the smaller into the large bubble because excess pressure inside the former is greater than inside the latter. As a result, the smaller bubble shrinks and the larger one swells.
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Question Text
Assertion :A large soap bubble expands while a small bubble shrinks, when they are connected to each other by a capillary tube.
Reason :The excess pressure inside bubble (or drop) is inversely proportional to the radius.
TopicMechanical Properties of Fluids
SubjectPhysics
ClassClass 11
Answer TypeText solution:1
Upvotes76