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The earth is an approximate sphere. If the interior contained matter which is not of the same density everywhere, then on the surface of the earth, the acceleration due to gravity:
1. will be directed towards the centre but not the same everywhere.
2. will have the same value everywhere but not directed towards the centre.
3. will be the same everywhere in magnitude directed towards the centre.
4. cannot be zero at any point.
Subtopic:  Acceleration due to Gravity |
Level 4: Below 35%
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Consider the following statements:
(a) The acceleration due to gravity decreases with increasing altitude.
(b) The acceleration due to gravity increases with increasing depth (assuming the Earth is of uniform density).
(c) The acceleration due to gravity increases with increasing latitude.
(d) The acceleration due to gravity is independent of the Earth's mass.


Choose the correct option from the given ones:

1. (b), (d) 2. (a), (c)
3. (c), (d) 4. (a), (c), (d)
Subtopic:  Acceleration due to Gravity |
 71%
Level 2: 60%+
Hints

If the mass of the sun were ten times smaller and gravitational constant \(G\) were ten times larger in magnitude. Then,
(a) walking on the ground would become more difficult.
(b) the acceleration due to gravity on the earth will not change.
(c) raindrops will fall much faster.
(d) aeroplanes will have to travel much faster.

 
Choose the correct alternatives:
1. (a), (b), (c)
2. (a), (d)
3. (b), (c), (d)
4. (a), (c), (d)

Subtopic:  Acceleration due to Gravity |
 65%
Level 2: 60%+
Hints

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