BPSC – Combined Competitive Examination · પ્રશ્ન 15
Heat transfer that does not require a medium is called:
જવાબ બતાવો અને સમજૂતી
જવાબ: (A) Radiation
સમજૂતી
Radiation needs no medium, which is how the Sun's heat reaches Earth.
- (A) સાચો
Correct: radiation travels as electromagnetic waves, even through vacuum.
- (B) ખોટો
Wrong: not a mode of heat transfer.
- (C) ખોટો
Wrong: needs a material medium (mostly solids).
- (D) ખોટો
Wrong: needs a fluid medium.