$A$ hollow sphere of mass $M$ and radius $R$ is immersed in a tank of water (density $\rho_w$). The sphere would float if it were set free. The sphere is tied to the bottom of the tank by two wires which make an angle of $45^{\circ}$ with the horizontal as shown in the figure. The tension $T_1$ in each wire is:

  • A
    $\frac{\frac{4}{3}\pi R^3 \rho_w g - Mg}{\sqrt{2}}$
  • B
    $\frac{2}{3}\pi R^3 \rho_w g - Mg$
  • C
    $\frac{\frac{4}{3}\pi R^3 \rho_w g - Mg}{2}$
  • D
    $\frac{4}{3}\pi R^3 \rho_w g + Mg$

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