MCQ
What does not change in the field of central force
  • A
    Potential energy
  • B
    Kinetic energy
  • C
    Linear momentum
  • Angular momentum

Answer

Correct option: D.
Angular momentum
For central force, torque is zero.
$\because \tau=\frac{d L}{d t}=0 \Rightarrow L=\mathrm{constant}$
i.e. Angular momentum is constant.

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

Similar questions

The ray diagram could be correct

Image

Calculate the amount of heat (in calories) required to convert $5 \mathrm{gm}$ of ice at $0^{\circ} \mathrm{C}$ to steam at $100^{\circ} \mathrm{C}$
A sensitive magnetic instrument can be shielded very effectively from outside magnetic fields by placing it inside a box of
If $|\vec{A} \times \vec{B}|=|\vec{A} \cdot \vec{B}|$, then angle between $\vec{A}$ and $\vec{B}$ will be
The ratio of thermionic currents $(I / I)$ for a metal when the temperature is slowly increased $T_0$ to $T$ as shown in figure. ( $I$ and $I$ are currents at $T$ and respectively). Then which one is correct?

Image

A small lamp is hung at a height of $8$ feet above the centre of a round table of diameter $16$ feet. The ratio of intensities of illumination at the centre and at points on the circumference of the table will be
A semiconductor is cooled from $T_1 K$ to $T_2 K$. Its resistance
In a transformer $220$ ac voltage is increased to $2200$ volts. If the number of turns in the secondary are $2000,$ then the number of turns in the primary will be
An object is attached to the bottom of a light vertical spring and set vibrating. The maximum speed of the object is $15\  cm / sec$ and the period is $628$ milli-seconds. The amplitude of the motion in centimeters is
A capillary tube of radius $r$ is dipped in a liquid of density $\rho$ and surface tension $S$. If the angle of contact is $\theta$, the pressure difference between the two surfaces in the beaker and the capillary