# Gravitation · Physics · COMEDK

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## MCQ (Single Correct Answer)

COMEDK 2024 Evening Shift
The acceleration due to gravity at pole and equator can be related as
COMEDK 2024 Evening Shift
A satellite is revolving around the earth in a circular orbit with kinetic energy of $$1.69 \times 10^{10} \mathrm{~J}$$. The additional kinetic energ...
COMEDK 2024 Morning Shift
If $$\mathrm{A}$$ is the areal velocity of a planet of mass $$\mathrm{M}$$, then its angular momentum is
COMEDK 2024 Morning Shift
If the earth has a mass nine times and radius four times that of planet X, the ratio of the maximum speed required by a rocket to pull out of the grav...
COMEDK 2023 Morning Shift
Starting from the centre of the earth having radius $$R$$, the variation of $$g$$ (acceleration due to gravity) is shown by
COMEDK 2023 Morning Shift
If escape velocity on earth surface is $$11.1 \mathrm{~kmh}^{-1}$$, then find the escape velocity on moon surface. If mass of moon is $$\frac{1}{81}$$...
COMEDK 2023 Morning Shift
The height vertically above the earth's surface at which the acceleration due to gravity becomes $$1 \%$$ of its value at the surface is
COMEDK 2023 Evening Shift
An uniform sphere of mass $$M$$ and radius $$R$$ exerts a force of $$F$$ on a small mass $$m$$ placed at a distance of 3R from the centre of the spher...
COMEDK 2023 Evening Shift
The acceleration due to gravity at a height of $$7 \mathrm{~km}$$ above the earth is the same as at a depth d below the surface of the earth. Then d i...
COMEDK 2022
If the earth were to spin faster, acceleration due to gravity at the poles
COMEDK 2022
The height at which the acceleration due to gravity becomes $$\frac{g}{16}$$ (where, g = acceleration due to gravity on the surface of the earth) in t...
COMEDK 2022
The escape velocity of a projectile on the earth's surface is 11.2 km/s. A body is projected out with thrice this speed. The speed of the body far awa...
COMEDK 2021
Kepler's second law of planetary motion corresponds to
COMEDK 2021
A constant potential energy of a satellite is given as $$\mathrm{PE}=r(\mathrm{KE})$$ whee, PE = potential energy and KE = kinetic energy. The value o...
COMEDK 2020
A satellite can be in a geostationary orbit around a planet if it is at a distance R from the centre of the planet. If the planet starts rotating abou...
COMEDK 2020
Two spherical bodies of masses M and 5M and radii R and 2R are released in free space with initial separation between their centres equal to 12 R. If ...
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