Published by:
CGP EDU Academic Team
Published on: September 12, 2026
A satellite revolves around the earth in an elliptical orbit. Its speed
Text Solution
Verified by ExpertsThe correct answer is:
B
Step 1: Understand Kepler's laws of planetary motion, specifically the second law which states that a line segment joining a planet (or satellite) and the sun (or Earth) sweeps out equal areas during equal intervals of time.
Step 2: As the satellite moves closer to the Earth, the gravitational force increases, causing the satellite to accelerate. Hence, its speed increases.
Step 3: Conversely, when the satellite is farther from the Earth, the gravitational force is weaker, and the satellite moves more slowly.
Step 4: Therefore, the speed of the satellite is maximum at its closest point (perigee) and minimum at its farthest point (apogee).
Therefore, Option B is the correct answer.
Step 2: As the satellite moves closer to the Earth, the gravitational force increases, causing the satellite to accelerate. Hence, its speed increases.
Step 3: Conversely, when the satellite is farther from the Earth, the gravitational force is weaker, and the satellite moves more slowly.
Step 4: Therefore, the speed of the satellite is maximum at its closest point (perigee) and minimum at its farthest point (apogee).
Therefore, Option B is the correct answer.
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