Question

The centrifugal effect counteracts one of the following forces:

• A. Brownian forces
• B. Cohesive forces
• C. Electrostatic forces
• D. Gravitational forces

Answer 1

The Correct Option is D

Step 1: Understanding the centrifugal effect. - The centrifugal effect is an apparent force that acts outward on a mass moving in a circular path. - It occurs due to inertia, opposing the force pulling the object towards the center of rotation. 

Step 2: Explanation of incorrect options. 
- (A) Brownian forces: These are due to random molecular motion and are not significantly affected by centrifugal forces. 
- (B) Cohesive forces: These are intermolecular forces responsible for material cohesion and are not counteracted by centrifugal force. 
- (C) Electrostatic forces: These arise from charged particle interactions and are not directly opposed by the centrifugal effect. 

Step 3: Selecting the correct option. Since the centrifugal force counteracts gravitational forces, preventing objects from being pulled towards the center, the correct answer is (D) Gravitational forces.