Practice question

MCQ

Question

Why can’t the gravitational force on a point mass outside a spherical shell be zero?

Options

Choose one · Correct answer highlighted

The shell has no mass The force acts as if from the nter Correct The shell’s thickness cancels the force The force is repulsive

Explanation

Outside a spherical shell, the gravitational force acts as if all the mass is concentrated at the nter. Since the mass is non-zero and the distance is finite, the force ( F = G M m/r² ) cannot be zero.

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