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COMEDK202510 May 2025Evening ShiftPhysicsGravitationActual

The value of universal gravitational constant was first determined by

Options

  1. ANewton
  2. BGalileo
  3. CCavendish
  4. DEinstein

Correct answer

C. Cavendish

Step-by-step solution

The universal gravitational constant G was first experimentally determined by Henry Cavendish in 1798 using a torsion balance apparatus. This experiment is famously known as the Cavendish experiment, which allowed for the measurement of the extremely weak gravitational force between two lead spheres, thereby enabling the calculation of the value of G . Answer: Cavendish

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