MCQ
In the solar system, which is conserved
  • Total Energy
  • B
    K.E.
  • C
    Angular Velocity
  • D
    Linear Momentum

Answer

Correct option: A.
Total Energy
a
In the solar system, the orbit of a planet is an ellipse with the Sun at one of the two foci.

velocity of the planet at every point on orbit will not be same, so momentum and Kinetic energy can not be conserved. The angular velocity will also vary. But the total enengy $(K E+P E)$ will remain conserved for the system.

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 standing wave in a medium is expressed as $y=0.2 \sin (0.8 x) \cos (3000 t) \,m$. The distance between any two consecutive points of minimum or maximum displacement is
The velocity of a bullet is reduced from $200\,m/s$ to $100\,m/s $ while travelling through a wooden block of thickness $10\,cm$. The retardation, assuming it to be uniform, will be 
Water is flowing through a tube of non-uniform cross-section. Ratio of the radius at entry and exit end of the pipe is $3$ : $2$. Then the ratio of velocities at entry and exit of liquid is
An ideal gas follows a process described by $p V^2=C$ from $\left(p_1, V_1, T_1\right)$ to $\left(p_2, V_2, T_2\right)$ and $C$ is a constant. Then,
The maximum percentage errors in the measurement of mass $(M)$, radius $(R)$ and angular velocity $(\omega)$ of a ring are $2 \%, 1 \%$ and $1 \%$ respectively, then find the maximum percentage error in the measurement of its angular momentum $(J=I \omega)$ about geometrical axis.
A ball is dropped vertically from height $h$ and is bouncing elastically on the floor (see figure). Which of the following plots best depicts the acceleration of the ball as a function of time.
When an ideal diatomic gas is heated at constant pressure, the fraction of the heat energy supplied which increases the internal energy of the gas, is
A particle moves along a parabolic path $y=9 x^2$ in such a way that the $x$ component of velocity remains constant and has a value $\frac{1}{3}\,m / s$. The acceleration of the particle is $.......m / s ^2$
The average momentum of a molecule in a sample of an ideal gas depends on:
Motion of an oscillating liquid column in a U-tube is:
  1. Periodic but not simple harmonic.
  2. Non-periodic.
  3. Simple harmonic and time period is independent of the density of the liquid.
  4. Simple harmonic and time-period is directly proportional to the density of the liquid.