Download App

7. gravitation — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics7. gravitation1 Mark
MCQ
A planet is revolving around the sun as shown in elliptical path

The correct option is

  • ✓
    The time taken in travelling $DAB$ is less than that for $BCD$
  • B
    The time taken in travelling $DAB$ is greater than that for $BCD$
  • C
    The time taken in travelling $CDA$ is less than that for $ABC$
  • D
    The time taken in travelling $CDA$ is greater than that for $ABC$
✓

Answer

Correct option: A.
The time taken in travelling $DAB$ is less than that for $BCD$
a
(a) During path $DAB$ planet is nearer to sun as comparison with path $BCD$. So time taken in travelling $DAB$ is less than that for $BCD$ because velocity of planet will be more in region $DAB.$

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→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

A wheel of radius $20\ cm$ is pushed to move it on a rough horizontal surface. It is found to move through a distance of $60\ cm$ on they road during the time it completes one revolution about the centre. Assume that the linear and the angular accelerations are uniform. The frictional force acting on the wheel by the surface is:
→
If the length of the simple pendulum is increased by $44\%$, then what is the change in time period of pendulum ..... $\%$
→
The apparent coefficient of expansion of a liquid when heated in a brass vessel is $X$ and when heated in a tin vessel is $Y$. If $\alpha$ is the coefficient of linear expansion for brass, the coefficient of linear expansion of tin is ..........
→
The horizontal range of a projectile is $4\sqrt 3 $ times its maximum height. Its angle of projection will be    ......... $^o$
→
An ideal system can be brought from state $A$ to $B$ through four paths as shown in the figure. The energy given to the system is minimum in
→
A very thin metallic shell of radius $r$ is heated to temperature $T$ and then allowed to cool. The rate of cooling of shell is proportional to ........
→
One circular ring and one ciruclar disc, both are having the same mass and radius. the ratio of their moments of inertia about the axes passing through their centres and perpendicular to their planes, will be
→
A thermodynamic system is taken through the cycle $PQRSP$ process. The net work done by the system is ....... $J$
→
A ball is projected at an angle $45^o$ with horizontal. It passes through a wall of height $h$  at horizontal distance $d_1$ from the point of projection and strikes the ground at a  horizontal distance $(d_1 + d_2)$ from the point of projection, then $h$ is
→
Match the thermodynamic processes taking place in a system with the correct conditions. In the table: $\Delta Q$ is the heat supplied, $\Delta W$ is the work done and $\Delta U$ is change in internal energy of the system
Process Condition
$(I)$ Adiabatic $(A)\; \Delta W =0$
$(II)$ Isothermal $(B)\; \Delta Q=0$
$(III)$ Isochoric $(C)\; \Delta U \neq 0, \Delta W \neq 0 \Delta Q \neq 0$
$(IV)$ Isobaric $(D)\; \Delta U =0$
→