Q. Which of the substance $A,\ B$ or $C$ has the highest specific heat? The temperature $vs$ time graph is shown
A) $A$
B) $B$
C) $C$
D) All have equal specific heat
Explanation
(c) Substances having more specific heat take longer time to get heated to a higher temperature and longer time to get cooled.
If we draw a line parallel to the time axis then it cuts the given graphs at three different points. Corresponding points on the times axis shows that
$t_{C} > t_{B} > t_{A} \Rightarrow C_{C} > C_{B} > C_{A}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.