Two small, equal masses are attached by a light weight rod. This … - Vidyadip

MCQ

Two small, equal masses are attached by a light weight rod. This object orbits a planet ; the length of the rod is smaller than the radius of the orbit, but not negligible. The rod rotates about its axis in such a way that it remains vertical with respect to the planet. (Assume in each case perturbation maintains the rate of rotation, so that in the co-rotating frame the rod is still stationary but at an angle to the vertical.)

A
There is no force in the rod; the equilibrium is neutral with respect to a small perturbation in the angle of the rod
✓
The rod is in tension; the equilibrium is stable with respect to a small perturbation in the angle of the rod
C
The rod is in compression; the equilibrium is stable with respect, to a small perturbation in the angle of the rod
D
The rod is in tension; the equilibrium is unstable with respect to a small perturbation in the angle of the rod

✓

Answer

Correct option: B.

The rod is in tension; the equilibrium is stable with respect to a small perturbation in the angle of the rod

b

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 7. gravitation→7. gravitation — all question types→Physics STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

One mole of an ideal monatomic gas undergoes a process described by the equation $PV^3 =$ constant. The heat capacity of the gas during this process is

In the below graph, point $B$ indicates

A spinning wheel A is brought in contact with another wheel B, initially at rest. Because of the friction at contact, the second wheel also starts spinning. Which of the following energies of the wheel B increases?

Kinetic.
Total.
Mechanical.
Internal.

The spring balance $A$ reads $2$ $kg$ with a block $m $ suspended from it. $A$ balance $B$ reads $5$ $kg$ when a beaker with liquid is put on the pan of the balance. The two balances are now so arranged that the hanging mass is inside the liquid in the beaker as shown in the figure in this situation:

A dip circle is taken to geomagnetic equator. The needle is allowed to move in a vertical plane perpendicular to the magnetic meridian. The needle will stay:

In horizontal direction only.
In vertical direction only.
In any direction except vertical and horizontal.
In the direction it is released.

Number of fermi in one metre is:

On colliding in a closed container the gas molecules

Three waves of equal frequency having amplitudes $10\, \mu m, 4\, \mu m$ and $7\, \mu m$ arrive at a given point with successive phase difference of $\pi/2$. The amplitude of the resulting wave in $\mu m$ is given by

$Henry/ohm$ can be expressed in

When a spiral spring is stretched by suspending a load on it, the strain produced is called