BPSC – Combined Competitive Examination · प्रश्न 85
Which of the following is a non-contact force?
उत्तर दाखवा आणि स्पष्टीकरण
उत्तर: (A) Magnetic force
स्पष्टीकरण
Non-contact forces include magnetic, electrostatic and gravitational forces.
- (A) बरोबर
Correct: magnets act at a distance without touching.
- (B) चूक
Wrong: friction needs surfaces in contact.
- (C) चूक
Wrong: impact requires contact.
- (D) चूक
Wrong: magnetic force is non-contact.