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Gravitational potential due to spherical shell Video Lecture | UPSC Physics Optional (Crash Course)

FAQs on Gravitational potential due to spherical shell Video Lecture - UPSC Physics Optional (Crash Course)

1. What is the formula for calculating the gravitational potential due to a spherical shell?

Ans. The formula for calculating the gravitational potential due to a spherical shell is V = -GM/R, where G is the gravitational constant, M is the mass of the shell, and R is the distance from the center of the shell to the point where the potential is being calculated.

2. How does the gravitational potential due to a spherical shell vary with distance from the center of the shell?

Ans. The gravitational potential due to a spherical shell decreases linearly with distance from the center of the shell. As the distance increases, the potential decreases proportionally.

3. Can the gravitational potential due to a spherical shell be negative?

Ans. Yes, the gravitational potential due to a spherical shell can be negative. This indicates that the point where the potential is being calculated is at a lower potential energy compared to the reference point.

4. What is the significance of the negative sign in the formula for gravitational potential due to a spherical shell?

Ans. The negative sign in the formula signifies that the gravitational potential due to a spherical shell is a conservative force. It indicates that work must be done to move an object towards the shell, while work is done by the gravitational force when moving the object away from the shell.

5. How does the mass of the spherical shell affect the gravitational potential at a certain distance from the center of the shell?

Ans. The gravitational potential due to a spherical shell is directly proportional to the mass of the shell. A larger mass will result in a greater gravitational potential at a certain distance from the center of the shell.

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Sep 23, 2025 Last updated

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