Home › Tamil Nadu SSLC (Class 10) › Physics › Laws of Motion › Since g = GM / R², the value of acceleration due…
Since g = GM / R², the value of acceleration due to gravity on the Earth's surface depends on the Earth's radius as
ADirectly proportional to R²
BDirectly proportional to R
CInversely proportional to R²
DIndependent of the radius R
Answer & Solution
Correct answer: C. Inversely proportional to R²
1. From g = GM / R², R appears in the denominator as R².
2. With G and M fixed, g is inversely proportional to R².
3. Rule out option B: a larger radius gives a smaller g, not a larger one.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 1 "Laws of Motion", p.17_
Related questions
A stone is whirled on a string. The inward force keeping it on its circle is the centripetA ring or sphere rolling without slipping touches the ground at just one point at a time. Experiments show that the coefficient for a sliding object compares with the one for a staThe constant of proportionality linking maximum static friction to the normal force is theThe friction acting before an object begins to slide is distinguished from the friction acA crate is pushed but does not budge. The surface force that cancels the push is called:A book lies still on a table. Balancing its weight is an upward push from the table calledTwo railway wagons collide and couple together. The standard application of conservation o