Transmission Of Heat Question 155
Question: Two thermometers A and B are exposed in sun light. The valve of A is painted black, But that of B is not painted. The correct statement regarding this case is
[BHU (Med.) 1999; MH CET 1999]
Options:
A) Temperature of A will rise faster than B but the final temperature will be the same in both
B) Both A and B show equal rise in beginning
C) Temperature of A will remain more than B
D) Temperature of B will rise faster
Show Answer
Answer:
Correct Answer: A
Solution:
As for a black body rate of absorption of heat is more. Hence thermometer A shows faster rise in temperature but finally both will acquire the atmospheric temperature.