BPSC – Combined Competitive Examination · ಪ್ರಶ್ನೆ 92
Paramagnetism is exhibited by which of the following?
ಉತ್ತರ ತೋರಿಸು ಮತ್ತು ವಿವರಣೆ
ಉತ್ತರ: (C) Platinum
ವಿವರಣೆ
Paramagnetic materials (Al, Pt, O₂) are weakly attracted; Fe, Co, Ni are ferromagnetic; Hg, Bi, Cu are diamagnetic.
- (A) ತಪ್ಪು
Wrong: mercury is diamagnetic.
- (B) ತಪ್ಪು
Wrong: iron is ferromagnetic.
- (C) ಸರಿ
Correct: platinum is paramagnetic.
- (D) ತಪ್ಪು
Wrong: nickel is ferromagnetic.
- (E) ತಪ್ಪು
Wrong: only one of the options A–D is correct.