Acceleration Due to Gravity and its Variation With Altitude and Depth NEET Questions

Physics - Gravitation

Acceleration Due to Gravity and its Variation With Altitude and Depth MCQ Questions


1.
What is the standard value of acceleration due to gravity on the surface of the Earth?
A.
9.8 m/s²
B.
10 m/s²
C.
9.81 m/s²
D.
9.5 m/s²
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ANSWER :
A. 9.8 m/s²
2.
How does the acceleration due to gravity change with altitude?
A.
It increases
B.
It decreases
C.
It remains constant
D.
It first increases, then decreases
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ANSWER :
B. It decreases
3.
If the radius of the Earth is R, at what depth d will the acceleration due to gravity be half of its surface value?
A.
R/3
B.
R/4
C.
R
D.
R/2
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ANSWER :
D. R/2
4.
The acceleration due to gravity decreases with____________
A.
Decrease in radius of Earth
B.
Increase in depth
C.
Decrease in mass
D.
Increase in altitude
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ANSWER :
D. Increase in altitude
5.
Assuming the Earth to be a sphere of uniform density, its acceleration due to gravity acting on a body:

NEET - 2021

A.
Increases with increasing altitude
B.
Increases with increasing depth
C.
Is independent of the mass of the Earth
D.
Is independent of the mass of the body
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ANSWER :
D. Is independent of the mass of the body
6.
At what depth from the Earth's surface is the acceleration due to gravity reduced by 10%? (Assume Earth's radius as R)

NEET - 2016

A.
0.1R
B.
0.2R
C.
0.3R
D.
0.4R
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ANSWER :
B. 0.2R