Kepler’s Law of Planetary Motion NEET Questions

Physics - Gravitation

Kepler’s Law of Planetary Motion MCQ Questions


7.
Kepler’s first law states that:

NEET - 2020

A.
Planets move in circular orbits around the Sun
B.
Planets move in elliptical orbits with the Sun at one focus
C.
Planets move in parabolic orbits with the Sun at one focus
D.
Planets move in hyperbolic orbits around the Sun
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ANSWER :
B. Planets move in elliptical orbits with the Sun at one focus
8.
Kepler’s First Law implies that the Sun is located:
A.
At the center of the orbit
B.
At one of the foci of the elliptical orbit
C.
Outside the orbit
D.
At the periphery of the orbit
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ANSWER :
B. At one of the foci of the elliptical orbit
9.
Kepler’s Third Law is particularly useful for determining:
A.
The mass of the planet
B.
The mass of the Sun
C.
The distance between planets
D.
The orbital speed of the planet
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ANSWER :
B. The mass of the Sun
10.
A satellite moves around a planet in a circular orbit under the influence of gravitational force alone. Its time period depends on:

NEET - 2022

A.
Mass of the satellite
B.
Radius of the orbit
C.
Orbital speed of the satellite
D.
Mass of the planet
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ANSWER :
D. Mass of the planet
11.
According to Kepler’s Second Law, the area swept by the line joining the planet and the Sun in a given time interval is:
A.
Constant
B.
Increasing
C.
Decreasing
D.
Zero
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ANSWER :
A. Constant
12.
Which law helps in calculating the orbital period of satellites around planets?
A.
Kepler’s First Law
B.
Kepler’s Second Law
C.
Kepler’s Third Law
D.
Newton’s First Law
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ANSWER :
C. Kepler’s Third Law