A spring-mass system oscillates with a frequency $\nu$. If it is taken in an elevator, slowly accelerating upward, the frequency will,

Four massless springs whose force constants are $2k, 2k, k$ and $2k$ respectively are attached to a mass $M$ kept on a frictionless plane (as shown in figure). If the mass $M$ is displaced in the horizontal direction, then the frequency of the system.

A mass is suspended separately by two springs of spring constants $k_1$ and $k_2$ in successive order. The time periods of oscillations in the two cases are $T_1$ and $T_2$ respectively. If the same mass is suspended by connecting the two springs in parallel, (as shown in the figure) then the time period of oscillations is $T.$ The correct relation is :

The frequency of oscillator of the springs as shown in figure will be:

Two springs of force constants $k$ and $2k$ are connected to mass as shown below. The frequency of oscillation of the mass is: