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


13.
At what height above the Earth's surface will the acceleration due to gravity be reduced to 64% of its value at the surface? (Assume Earth's radius as R)

NEET - 2018

A.
0.5R
B.
0.6R
C.
0.25R
D.
0.75R
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ANSWER :
A. 0.5R
14.
If the radius of the Earth is doubled but the mass remains the same, g will____________
A.
Become one-fourth
B.
Become half
C.
Remain the same
D.
Double
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ANSWER :
A. Become one-fourth
15.
What happens to g when we go deep inside the Earth?
A.
Increases linearly
B.
Decreases linearly
C.
Remains constant
D.
Becomes zero at the surface
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ANSWER :
B. Decreases linearly
16.
The value of g on the surface of the Moon is approximately____________
A.
9.8 m/s²
B.
1.6 m/s²
C.
3.7 m/s²
D.
4.9 m/s²
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ANSWER :
B. 1.6 m/s²
17.
How does g vary with depth d from the surface?
A.
Increases exponentially with d
B.
Increases linearly with d
C.
Decreases linearly with d
D.
Remains constant
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ANSWER :
C. Decreases linearly with d
18.
The acceleration due to gravity at the poles is____________
A.
Same as at the equator
B.
Minimum
C.
Maximum
D.
Zero
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ANSWER :
C. Maximum