Oscillations Questions

If a simple pendulum has significant amplitude only in the period between $t=0\text{s}$ to $t=\tau \text{s}$, then $\tau$ may be called the average life of the pendulum. When the spherical bob of the pendulum suffers a retardation (due to viscous drag) proportional to its velocity, with '$b$ ' as the constant of proportionality, the average life time of the pendulum is (assuming damping is small) in seconds:

If two springs $S_1$ and $S_2$ of force constants $k_1$ and $k_2$, respectively, are stretched by the same force, it is found that more work is done on spring $S_1$ than on spring $S_2$.Statement 1: If stretched by the same amount, work done on $S_1$, will be more than that on $S_2$.Statement 2: $k_1<k_2$.