State PCS PYQPrelims 2024

BPSC – Combined Competitive Examination · Question 85

Which of the following is a non-contact force?

  1. Magnetic force
  2. Frictional force
  3. Impact force
  4. None of these
Show answer & explanation

Answer: (A) Magnetic force

Explanation

Non-contact forces include magnetic, electrostatic and gravitational forces.

  • (A) Correct

    Correct: magnets act at a distance without touching.

  • (B) Incorrect

    Wrong: friction needs surfaces in contact.

  • (C) Incorrect

    Wrong: impact requires contact.

  • (D) Incorrect

    Wrong: magnetic force is non-contact.