BPSC – Combined Competitive Examination · ಪ್ರಶ್ನೆ 15
Heat transfer that does not require a medium is called:
ಉತ್ತರ ತೋರಿಸು ಮತ್ತು ವಿವರಣೆ
ಉತ್ತರ: (A) Radiation
ವಿವರಣೆ
Radiation needs no medium, which is how the Sun's heat reaches Earth.
- (A) ಸರಿ
Correct: radiation travels as electromagnetic waves, even through vacuum.
- (B) ತಪ್ಪು
Wrong: not a mode of heat transfer.
- (C) ತಪ್ಪು
Wrong: needs a material medium (mostly solids).
- (D) ತಪ್ಪು
Wrong: needs a fluid medium.