What does “Acceleration due to gravity g” actually mean in Gravitation, and why does it matter for JEE?
g = GM/R² at a planet's surface; it decreases with both altitude and depth.
In simple words: g = GM/R² at a planet's surface; it decreases with both altitude and depth. Getting Acceleration due to gravity g clear matters because JEE questions on Gravitation usually test this idea directly, not just a formula you memorised.
Key point
Acceleration due to gravity g
Common mistake
treating g as a fixed 9.8 everywhere, including in orbit.
Memory tip
g falls off with height and also drops as you go below the surface.
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