1
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Change Language
The kinetic energies of a planet in an elliptical orbit about the Sun, at positions A, B and C are KA, KB and KC, respectively. AC is the major axis and SB is perpendicular to AC at the position of the Sun S as shown in the figure. Then NEET 2018 Physics - Gravitation Question 20 English
A
KA < KB < KC
B
KA > KB > KC
C
KB < KA < KC
D
KB > KA > KC
2
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Change Language
The acceleration due to gravity at a height at a height 1 km above the rearth is the same as at a depth d below the surface of earth. Then
A
d = 1 km
B
d = $${3 \over 2}$$ km
C
d = 2 km
D
d = $${1 \over 2}$$ km
3
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Change Language
Two astronauts are floating in gravitational free space after having lost contact with their spaceship. The two will
A
move towards each other.
B
move away from each other.
C
will become stationary.
D
keep floating at the same distance between them.
4
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language
A satellite of mass m is orbiting the earth (of radius R) at a height h from its surface. The total energy of the satellite in terms of g0, the value of acceleration due to gravity at the earth's surface, is
A
$${{m{g_0}{R^2}} \over {2\left( {R + h} \right)}}$$
B
$$ - {{m{g_0}{R^2}} \over {2\left( {R + h} \right)}}$$
C
$${{2m{g_0}{R^2}} \over {R + h}}$$
D
$$ - {{2m{g_0}{R^2}} \over {R + h}}$$

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