A simple pendulum of length L has period T0=2π√(L/g) when oscillating through small angles in a fixed laboratory. List-I describes four situations of…

A simple pendulum of length $L$ has period $T_0=2\pi\sqrt{L/g}$ when oscillating through small angles in a fixed laboratory. List-I describes four situations of the same pendulum and List-II gives the ratio $T/T_0$ of the new period to $T_0$. Match List-I with List-II.

List-I
(P) Pendulum in a lift accelerating upward at $g/3$
(Q) Pendulum in a vehicle accelerating horizontally at $\sqrt3\,g$
(R) Pendulum whose string, when vertical, is caught at its midpoint by a fixed peg (small oscillations on both sides)
(S) Pendulum in a lift accelerating downward at $g/2$

List-II
(1) $\sqrt2$
(2) $\dfrac{1}{\sqrt2}$
(3) $\dfrac{\sqrt3}{2}$
(4) $\dfrac{2+\sqrt2}{4}$
(5) $2$