The scientist who formulated the universal law of gravitation is: MCQ with Answer and Explanation

The scientist who formulated the universal law of gravitation is:
A. Johannes Kepler
B. Isaac Newton
C. Galileo Galilei
D. Albert Einstein
Answer: Option B
Solution (By JKSSB Mock Tests)
Isaac Newton formulated the universal law of gravitation in his Principia Mathematica (1687), stating F = Gm₁m₂/r². Galileo studied falling bodies; Kepler derived planetary motion laws; Einstein developed general relativity (gravity as spacetime curvature). Memory aid: 'Newton = gravity apple story'. This history-based question tests knowledge of key scientific contributions, frequently appearing in competitive exams. Always associate scientists with their specific discoveries to avoid confusion between classical and modern physics pioneers.

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Physics Questions

Question #1
A 10 μF capacitor is charged to 100 V. Energy stored is
A. 5 J
B. 0.05 J
C. 50 J
D. 0.5 J

Correct Answer: Option B


Explanation:
E = ½CV² = ½ × 10×10⁻⁶ × 10000 = 0.05 J.

This question belongs to: Science Physics
Question #2
The power of a lens is measured in
A. Watt
B. Metre
C. Dioptre
D. Lux

Correct Answer: Option C


Explanation:
Dioptre (D) = m⁻¹. Power = 1/f in metres. Convex positive, concave negative. Optometry uses dioptre.

This question belongs to: Science Physics
Question #3
A pendulum has time period 2 s. If its length is increased by 4 times, new period is
A. 1 s
B. 8 s
C. 4 s
D. 2 s

Correct Answer: Option C


Explanation:
T ∝ √L, L'=4L => T' = √4 T = 2×2 = 4 s.

This question belongs to: Science Physics