alleryWhich problem with Mercury's orbit showed Newton's theory was incomplete?
AIts perihelion
BIts colour
CIts moons
DIts mass
Answer & Solution
Correct answer: A. Its perihelion
1. Le Verrier in 1859 pointed out a problem with the perihelion of Mercury.
2. The observed precession differed from Newtonian theory.
3. This counterexample showed Newton's theory to be at least incomplete.
_Source: Wikipedia, Scientific method, Deductive and inductive reasoning_
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