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A ball of density d is dropped on to a horizontal solid surface. It bounces elastically from the surface and returns to its original position in a time `t_1`. Next, the ball is released and it falls through the same height before striking the surface of a liquid of density of `d_L` (a) If `dltd_L`, obtain an expression (in terms of d, `t_1` and `d_L`) for the time `t_2` the ball takes to come back to the position from which it was released. (b) Is the motion of the ball simple harmonic? (c) If `d=d_L`, how does the speed of the ball depend on its depth inside the liquid? Neglect all frictional and other dissipative forces. Assume the depth of the liquid to be large.A. `t_(2) gt t_(1)`B. `t_(2) gt t_(1)`C. the motion of the ball is not simple harmonicD. If `rho = rho_(L)`, then the speed of the ball inside the liquid will be independent of its depth |
| Answer» Correct Answer - A::C::D | |