BPSC – Combined Competitive Examination · ಪ್ರಶ್ನೆ 85
Which of the following is a non-contact force?
ಉತ್ತರ ತೋರಿಸು ಮತ್ತು ವಿವರಣೆ
ಉತ್ತರ: (A) Magnetic force
ವಿವರಣೆ
Non-contact forces include magnetic, electrostatic and gravitational forces.
- (A) ಸರಿ
Correct: magnets act at a distance without touching.
- (B) ತಪ್ಪು
Wrong: friction needs surfaces in contact.
- (C) ತಪ್ಪು
Wrong: impact requires contact.
- (D) ತಪ್ಪು
Wrong: magnetic force is non-contact.