The total energy of a particle executing simple harmonic motion is proportional to the

The springs shown in the figure are all up stretched in the beginning when a man starts pulling the block. The man exerts a constant force $F$ on the block.

Suppose a tunnel is dug along a diameter of the earth. A particle is dropped from a point at a distance $h$ directly above the tunnel. The motion of the particle as seen from the earth will be,

The displacement versus time curve for a particle executing SHM is shown in figure. Choose the correct statement(s).

A particle starts from point $x=\frac{-\sqrt{3}}{2}A$ and move towards negative extreme as shown. If the time period of oscillation is $T$, then,