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 |
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The following are the given statements:
(a) Acceleration due to gravity decreases with increasing altitude.
(b) Acceleration due to gravity increases with increasing depth (assume the earth to be a sphere of uniform density).
(c) Acceleration due to gravity increases with increasing latitude.
(d) Acceleration due to gravity is independent of the mass of the earth.

Choose the correct alternatives:

1. (b), (d) 2. (a), (c)
3. (c), (d) 4. (a), (c), (d)
Subtopic:  Acceleration due to Gravity |
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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 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology