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25/01/2022 1:13 pm
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When a rubber ball is taken to a depth of _______m in deep sea, its volume decreases by 0.5%.
(The bulk modulus of rubber = 9.8 × 108 Nm-2. Density of sea water = 103 kgm-3 g = 9.8 m/s2)
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25/01/2022 1:17 pm
B = - \(\frac{\Delta P}{\Big( \frac{\Delta V}{V}\Big)}\) = -\(\frac{ρgh}{\Big( \frac{\Delta V}{V}\Big)}\)
= -\(\frac{B \frac{\Delta V}{V}}{ρg}\) = h
= \(\frac{9.8 \times 10^8 \times 0.5}{100 \times 10^3 \times 9.8}\) = h
h = 500