Transmission Of Heat Question 90
Question: Air is bad conductor of heat or partly conducts heat, still vacuum is to be placed between the walls of the thermos flask because
Options:
A) It is difficult to fill the air between the walls of thermos flask
B) Due to more pressure of air, the thermos can get crack
C) By convection, heat can flow through air
D) On filling the air, there is no advantage
Show Answer
Answer:
Correct Answer: C
Solution:
No flow of heat by convection in vacuum.
BETA
