Question

If the force on the tympanic membrane (eardrum) increases by about 1.5 N above the force from atmospheric pressure, the membrane can be damaged.

When you go scuba diving in the ocean, below what depth could damage to your eardrum start to occur? The eardrum is typically 8.1 mm in diameter. Take the density of seawater to be equal 1.03×103kg/m3.

Answer 1

The additional force is due to the additional pressure of the depth of water. We use equation for pressure due to column of water to find the required depth as shown below

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