A rubber ball be taken in a deep sea so that its volume is decreased by $x \%$. The bulk modulus of rubber…

A rubber ball be taken in a deep sea so that its volume is decreased by $x \%$. The bulk modulus of rubber is 'K' and density of sea water is ' $\varrho$ '. The depth to which a rubber ball is taken is proportional to $(\mathrm{g}=$ acceleration due to gravity)
  1. $\frac{\rho\text {x}}{\mathrm{Kg}}$
  2. $\frac{\mathrm{Kx}}{\rho\mathrm{g}}$
  3. $\frac{\rho\mathrm{g}}{\mathrm{Kx}}$
  4. $\frac{\mathrm{Q}}{\mathrm{Kxg}}$

Solution

$B=-\frac{\Delta p}{\Delta v / v}$ $\frac{\Delta v}{v}=\frac{x}{100}...(1)$ $\Delta p=\rho g h$ $\frac{\rho g h}{x / 100}$ $h \propto \frac{k x}{\rho g}$

Asked in: MHT CET 2020 (15 Oct Shift 1)

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