You are given a sphere, a cube and a thin circular plate, all made from copper and all having the same mass. If they are heated to a temperature of 200°C, then which are of them will cool fasted?
(a) Sphere
(b) Thin circular plate
(c) Cube
(d) All at the same rate
sumit kumar , 11 Years ago
Grade Upto college level
2 Answers
Saurabh Koranglekar
Last Activity: 5 Years ago
Dear student
The answer is option a
Regards
Vikas TU
Last Activity: 4 Years ago
Dear student The circular plate will cool fastest and the sphere will cool the slowest . The rate of heat transfer is directly proportional to the surface area.and the circular platte has a greater surface area.
Provide a better Answer & Earn Cool Goodies
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Ask a Doubt
Get your questions answered by the expert for free
Other Related Questions on engineering entrance exams