# NEET Physics Mechanical Properties of Fluids Questions Solved

A solid sphere of density $\mathrm{\eta }$ ( > 1) times lighter than water is suspended in a water tank by a string tied to its base as shown in fig. If the mass of the sphere is m then the tension in the string is given by

(a) $\left(\frac{\mathrm{\eta }-1}{\mathrm{\eta }}\right)\mathrm{mg}$                              (b) $\mathrm{\eta mg}$

(c) $\frac{mg}{\mathrm{\eta }}$                                        (d) $\left(\mathrm{\eta }-1\right)\mathrm{mg}$

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