A narrow, uniform glass tube, closed at one end, constains air which is sealed by a thread of mercury. The tube is placed first horizontally and then vertically with the open end at the top. Which of the following statements is correct?

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A The length of the entrapped air in the horizontal position is less than that in the vertical position
B The length of the entrapped air in the vertical position is less than that in the horizontal position
C The length of the mercury column becomes shorter in the horizontal position than in the vertical position
D The length of the mercury column becomes shorter in the vertical position than in the horizontal position
E The pressure of the entrapped air is atmospheric in both cases.

Correct Answer: Option B

Explanation:

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A narrow, uniform glass tube, closed at one end, constains air which is sealed by a ...

Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE

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