OnlineCBT
Physics · GRAVITATION
हिन्दीConsider the following statements regarding the Cavendish experiment for determining the gravitational constant \( G \): (A) It utilizes two small lead spheres attached at the ends of a light bar suspended by a fine wire. (B) Two large lead spheres are brought close to the small spheres from opposite sides to produce a net translational force. (C) The gravitational torque is balanced by the restoring torque of the twisted wire. (D) The value of \( G \) determined experimentally is approximately \( 6.67 \times 10^{-11} \text{ N m}^2/\text{kg}^2 \). How many of the above statements are correct?
Correct answer · Option 3
Only three
Explanation
Statements (A), (C), and (D) are correct. Statement (B) is incorrect because there is NO net force on the bar; the equal and opposite forces form a couple that produces only a torque.
