NEET 2018 | Gravitation Question 19 | Physics

NEET 2018

MCQ (Single Correct Answer)

-1

If the mass of the Sun were ten times smaller and the universal gravitational constant were ten times larger in magnitude, which of the following is not correct?

Raindrops will fall faster.

Walking on the ground would become more difficult.

Time period of a simple pendulum on the Earth would decrease.

g on the Earth will not change.

NEET 2017

MCQ (Single Correct Answer)

-1

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

d = 1 km

d = $${3 \over 2}$$ km

d = 2 km

d = $${1 \over 2}$$ km

NEET 2017

MCQ (Single Correct Answer)

-1

Two astronauts are floating in gravitational free space after having lost contact with their spaceship. The two will

move towards each other.

move away from each other.

will become stationary.

keep floating at the same distance between them.

NEET 2016 Phase 2

MCQ (Single Correct Answer)

-1

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

$${{m{g_0}{R^2}} \over {2\left( {R + h} \right)}}$$

$$ - {{m{g_0}{R^2}} \over {2\left( {R + h} \right)}}$$

$${{2m{g_0}{R^2}} \over {R + h}}$$

$$ - {{2m{g_0}{R^2}} \over {R + h}}$$

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Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution