What will be the force constant of the spring system shown in the figure

A mass $m$ is attached to two springs as shown in figure. The spring constants of two springs are $K_1$ and $K_2.$ For the frictionless surface, the time period of oscillation of mass $m$ is

As shown in the figure, an iron block $A$ of volume $0.25 {\mathrm{m}}^3$ is attached to a spring $S$ of unstretched length $1.0 \mathrm{m}$ and hanging to the ceiling of a roof. The spring gets stretched by $0.2 \mathrm{m}$. This block is removed and another block $B$ of iron of volume $0.75 {\mathrm{m}}^3$ is now attached to the same spring and kept on a frictionless incline plane of $30°$ inclination. The distance of the block from the top along the incline at equilibrium is

Two identical springs are connected to mass$m$ as shown $(k=\text{spring constant})$ . If the period of the configuration in (i) is $2 \mathrm{s}$, the period of the configuration (ii) is:

I 

II 

A block of mass $20 \mathrm{kg}$ is suspended through two spring balances with negligible mass as shown in figure. What will be the readings in the upper and lower balance respectively ?

Two blocks, $A$ and $B$ of masses, $2m$ and $m$, respectively, are connected by a massless and inextensible string. The whole system is suspended by a massless spring as shown in the figure. The magnitudes of acceleration of $A$ and $B$, immediately after the string is cut, respectively are

Area of piston is 1 m². When heat is supplied to the gas it expands and displaces piston by $\frac{\text{L}}{2}$ where L = 1m. Natural length of springs is L = 1m. Spring constant K = 100 N/m. The pressure of gas in final situation is –

Two identical springs are connected to mass $m$ as shown $(k=\mathrm{s}\mathrm{p}\mathrm{r}\mathrm{i}\mathrm{n}\mathrm{g}\mathrm{ }\mathrm{c}\mathrm{o}\mathrm{n}\mathrm{s}\mathrm{t}\mathrm{a}\mathrm{n}\mathrm{t})$. If the period of the configuration in (a) is 2 s, the period of the configuration in (b) is

Two springs, of force constants $k_1$ anad $k_2$ are connected to a mass $\mathit{\text{m}}$ as shown. The frequency of oscillation of the mass is $\mathit{\text{f}}$. If both $k_1$ and $k_2$ are made four times their original values, the frequency of oscillation becomes