Metals are good conductors of heat because
A) They contain free electrons
B) Their atoms are relatively far apart
C) Their atoms collide frequently
D) They have reflecting surfaces
E) None of the above
Correct Answer:
Verified
Q12: If thermal conductivity of a material of
Q13: Dynamic similarity is the similarity of
A)Shape
B)Forces
C)Velocities
D)Effective dimensions
E)None
Q14: Which of the following is an example
Q15: The sensible heat of hot industrial gases
Q16: For glass wool the thermal conductivity varies
Q18: Which one of the following cannot be
Q19: A body cools from 80°C to 70°C
Q20: Calorific value of Indian coal is
A)5700 kcal/kg
B)9600
Q21: The statement that the emissivity and absorptivity
Q22: Emissivity and absorptivity of a surface are
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