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JEE PHYSICS MCQ: MECHANICAL PROPERTIES OF FLUIDS

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Application +4 | -1

An air bubble of radius

1 \mathrm{~mm}

is formed inside water at a depth

10 \mathrm{~m}

below free surface (where, air pressure is

10^5 \mathrm{Nm}^{-2}

). The pressure inside the bubble is (surface tension of water

=7 \times 10^{-2} \mathrm{Nm}^{-1}

)

View answer and explanation

Correct option: D

2.0014 \times 10^5 \mathrm{Nm}^{-2}

Option D (

2.0014 \times 10^5 Nm^{-2}

) is correct because it accounts for both the hydrostatic pressure due to the depth of the bubble and the excess pressure due to surface tension.

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