Question

Which of the following statements is / are true?

• A. The strength of a non contact force is independent of distance between the bodies
• B. meteors that enter earth atmosphere burn up due to non -contact force
• C. magnetic force is a non -contact force
• D. Contact force are always observes then non-contact forces.

Answer 1

The correct option is C magnetic force is a non -contact force

Solution

Option A is false because for non contact forces F is inversely proportional to $r^n$.

Option B is false because meteors burn up in atmosphere because of air friction which is an contact force

Option C is true

The correct option is C