Total emissivity of polished silver compared to black body is
A) same
B) higher
C) more or less same
D) very much lower
E) very much higher.
Correct Answer:
Verified
Q10: Joule sec is the unit of
A)universal gas
Q11: The value of Prandtl number for air
Q12: The value of the wavelength for maximum
Q13: Log mean temperature difference in case of
Q14: The energy distribution of an ideal reflector
Q16: According to Stefan-Boltzmann law, ideal radiators emit
Q17: Which of the following property of air
Q18: The unit of Stefan Boltzmann constant is
A)watt/cm2
Q19: In free con-vection heat transfer, Nusselt number
Q20: The thermal diffusivities for gases are generally
A)more
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents