- 1(current)
Q. No.Imagine a new planet having the same density as that of the Earth but \(3\) times bigger than the Earth in size. If the acceleration due to gravity on the surface of the earth is \(g\) and that on the surface of the new planet is \(g',\) then:
| 1. | \(g' = 3g\) | 2. | \(g' = 9g\) |
| 3. | \(g' = \frac{g}{9}\) | 4. | \(g' = 27g\) |
Subtopic: Â Acceleration due to Gravity |
 82%
From NCERT
AIPMT - 2005
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A body weighs \(72~\text{N}\) on the surface of the earth. What is the gravitational force on it at a height equal to half the radius of the earth?
| 1. | \(32~\text{N}\) | 2. | \(30~\text{N}\) |
| 3. | \(24~\text{N}\) | 4. | \(48~\text{N}\) |
Subtopic: Â Acceleration due to Gravity |
 75%
From NCERT
NEET - 2020
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Starting from the centre of the earth, having radius \(R,\) the variation of \(g\) (acceleration due to gravity) is shown by:
| 1. |  |
2. |  |
| 3. |  |
4. |  |
Subtopic: Â Acceleration due to Gravity |
 87%
From NCERT
NEET - 2016
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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 statements would not be correct?
| 1. | Raindrops would drop faster. |
| 2. | Walking on the ground would become more difficult. |
| 3. | Time period of a simple pendulum on the earth would decrease. |
| 4. | Acceleration due to gravity \((g)\) on earth would not change. |
Subtopic: Â Acceleration due to Gravity |
 74%
From NCERT
NEET - 2018
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The acceleration due to gravity at a height \(1~\text{km}\) above the earth's surface is the same as at a depth \(d\) below the surface of the earth. Then:
| 1. | \(d= 1~\text{km}\) | 2. | \(d= \frac{3}{2}~\text{km}\) |
| 3. | \(d= 2~\text{km}\) | 4. | \(d= \frac{1}{2}~\text{km}\) |
Subtopic: Â Acceleration due to Gravity |
 72%
From NCERT
NEET - 2017
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A body weighs \(200\) N on the surface of the earth. How much will it weigh halfway down the centre of the earth?
| 1. | \(100\) N | 2. | \(150\) N |
| 3. | \(200\) N | 4. | \(250\) N |
Subtopic: Â Acceleration due to Gravity |
 81%
From NCERT
NEET - 2019
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The variation of intensity of the gravitational field \((E)\) of the moon (having radius \(R\) ) with distance \((r)\) from the centre of the moon is represented by:
| 1. |  |
2. |  |
| 3. |  |
4. |  |
Subtopic: Â Acceleration due to Gravity |
 58%
From NCERT
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A body weighs \(72\) N on the surface of the earth. What is the gravitational force on it due to the earth at a height equal to half the radius of the earth from the surface?
| 1. | \(72\) N | 2. | \(32\) N |
| 3. | \(28\) N | 4. | \(16\) N |
Subtopic: Â Acceleration due to Gravity |
 88%
From NCERT
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The percentage decrease in the weight of a rocket, when it is taken to a height of \(32~\text{km}\) above the surface of the earth will be:
(the radius of the Earth \(R=6400~\text{km}\))
1. \(1\text{%}\)
2. \(3\text{%}\)
3. \(4\text{%}\)
4. \(0.5\text{%}\)
(the radius of the Earth \(R=6400~\text{km}\))
1. \(1\text{%}\)
2. \(3\text{%}\)
3. \(4\text{%}\)
4. \(0.5\text{%}\)
Subtopic: Â Acceleration due to Gravity |
 85%
From NCERT
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Choose the correct alternative.
| 1. | Acceleration due to gravity increases with increasing altitude. |
| 2. | Acceleration due to gravity remains unchanged with increasing altitude. |
| 3. | Acceleration due to gravity increases with increasing depth (assume the earth to be a sphere of uniform density). |
| 4. | Acceleration due to gravity decreases with increasing depth (assume the earth to be a sphere of uniform density). |
Subtopic: Â Acceleration due to Gravity |
 72%
From NCERT
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