BPSC – Combined Competitive Examination · ప్రశ్న 85
Which of the following is a non-contact force?
సమాధానం చూపించు & వివరణ
సమాధానం: (A) Magnetic force
వివరణ
Non-contact forces include magnetic, electrostatic and gravitational forces.
- (A) సరైనది
Correct: magnets act at a distance without touching.
- (B) తప్పు
Wrong: friction needs surfaces in contact.
- (C) తప్పు
Wrong: impact requires contact.
- (D) తప్పు
Wrong: magnetic force is non-contact.