Assertion :A closed cylinder containing high-pressure gas tends to rise against gravity when the gas is allowed to escape through an orifice at the bottom. Reason: The velocity of escaping gas develops an upwards thrust proportional to the area of the cross-section of the orifice.

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

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

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is C Assertion is correct but Reason is incorrect
Assertion is correct but reason is wrong as the velocity of escaping gas is inversely proportional to the area of cross-section of orifice.

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