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

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


13.
The acceleration due to gravity on the surface of the Earth is least at
A.
Equator
B.
Poles
C.
45° latitude
D.
Centre of the Earth
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ANSWER :
A. Equator
14.
Choose the INCORRECT statement:
A.
g varies with altitude
B.
g varies with depth
C.
g varies with latitude on Earth
D.
g depends on the mass of the falling body
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ANSWER :
D. g depends on the mass of the falling body
15.
The acceleration due to gravity at a height h above the Earth's surface is given by (exact formula):
A.
g(h) = g × (R/(R+h))²
B.
g(h) = g × (R+h)²/R²
C.
g(h) = g × R/(R+h)
D.
g(h) = g × h/R
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ANSWER :
A. g(h) = g × (R/(R+h))²
16.
For h << R_E, the approximate formula for g at height h is:
A.
g(h) ≈ g(1 + 2h/R_E)
B.
g(h) ≈ g(1 + h/R_E)
C.
g(h) ≈ g(1 − h/R_E)
D.
g(h) ≈ g(1 − 2h/R_E)
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ANSWER :
D. g(h) ≈ g(1 − 2h/R_E)
17.
At a height equal to R_E (radius of Earth) above the surface, the value of g becomes:
A.
g/2
B.
g/9
C.
g/3
D.
g/4
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ANSWER :
D. g/4
18.
At a height equal to 2R_E above the Earth's surface, g becomes:
A.
g/4
B.
g/3
C.
g/9
D.
g/6
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ANSWER :
C. g/9
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