Q. A hot and a cold body are kept in vacuum separated from each other. Which of the following cause decrease in temperature of the hot body

A) Radiation
B) Convection
C) Conduction
D) Temperature remains unchanged
Explanation

(a) In vacuum heat flows by the radiation mode only

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.