મુખ્ય સામગ્રી પર જાઓ

State PCS PYQPrelims 2024

BPSC – Combined Competitive Examination · પ્રશ્ન 85

Which of the following is a non-contact force?

Magnetic force
Frictional force
Impact force
None of these

જવાબ બતાવો અને સમજૂતી

જવાબ: (A) Magnetic force

સમજૂતી

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

(A) સાચો
Correct: magnets act at a distance without touching.
(B) ખોટો
Wrong: friction needs surfaces in contact.
(C) ખોટો
Wrong: impact requires contact.
(D) ખોટો
Wrong: magnetic force is non-contact.