An air bubble of volume 2 cm\(^3\) is formed 20m under water. What will be its...

An air bubble of volume 2 cm\(^3\) is formed 20m under water. What will be its...

WAEC 1995

An air bubble of volume 2 cm\(^3\) is formed 20m under water. What will be its volume when it rises to just below the surface of the water if the atmospheric pressure is equivalent to a height of 10m of water?

A. 6cm³
B. 4cm³
C. 3cm³
D. 2cm³
E. 1cm³

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Correct Answer: Option A

Explanation

P\(_1\)V\(_1\) = P\(_2\)V\(_2\)

When the bubble comes to the surface and pressure drops 3 times, the volume increases 3 times.

V\(_2\) = 3 x 2

= 6 cm\(^3\)

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An air bubble of volume 2 cm\(^3\) is formed 20m under water. What will be its...

Correct Answer: Option A

Explanation

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