Escape Velocity NEET Questions

Physics - Gravitation
Escape Velocity

Escape Velocity MCQ Questions


7.
The dimensional formula of escape velocity is:
A.
[L T⁻¹]
B.
[L T⁻²]
C.
[M L T⁻¹]
D.
[L² T⁻¹]
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ANSWER :
A. [L T⁻¹]
8.
Escape velocity depends on which of the following?
A.
Mass of the projectile
B.
Direction of projection
C.
Mass and radius of the planet (and G)
D.
Air resistance only
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ANSWER :
C. Mass and radius of the planet (and G)
9.
Escape velocity does NOT depend on:
A.
Mass of the planet
B.
Radius of the planet
C.
Mass of the projectile
D.
Gravitational constant G
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ANSWER :
C. Mass of the projectile
10.
The escape velocity from a planet does NOT depend on the:
A.
Direction of projection (provided the projection is outward)
B.
Latitude of the launch site (idealised planet)
C.
Mass of the projectile
D.
All of the above
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ANSWER :
D. All of the above
11.
If R = 6400 km and g = 9.8 m/s², the escape velocity from the Earth's surface is approximately:
A.
7.92 km/s
B.
22.40 km/s
C.
15.84 km/s
D.
11.20 km/s
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ANSWER :
D. 11.20 km/s
12.
Escape velocity from the Moon's surface (g_M = 1.62 m/s², R_M = 1.74 × 10⁶ m) is approximately:
A.
11.2 km/s
B.
5.6 km/s
C.
2.4 km/s
D.
1.6 km/s
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ANSWER :
C. 2.4 km/s
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