Home Physics Surface Tension Mix An air bubble in a water tank rises from the…
Physics Surface Tension Mix MCQ (Single Correct)

An air bubble in a water tank rises from the bottom to the top. Which of the following statements are true

A
Bubble rises upwards because pressure at the bottom is less than that at the top.
B
Bubble rises upwards because pressure at the bottom is greater than that at the top.
C
As the bubble rises, its size increases
D
As the bubble rises, its size decreases

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(b, c) So bubble rises upward.

At constant temperature (Boyle’s law)

Since as the bubble rises upward, pressure decreases, then from above law volume of bubble will increase i.e. its size increases.

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