Multiple Choice
A hollow sphere with uniform interior temperature and a small hole behaves very nearly as a
A) White body
B) Transparent body
C) Opaque body
D) Black body
E) Grey body
Correct Answer:
Verified
Correct Answer:
Verified
Q24: Which of the following are generally diathermanous?<br>A)Solids<br>B)Liquids<br>C)Gases<br>D)All
Q25: The radiation from flames consists of<br>A)Continuous radiation
Q26: In case of a body transparent to
Q27: Transmission of heat by molecular collision is<br>A)Scattering<br>B)Transmission<br>C)Radiation<br>D)Convection<br>E)Conduction
Q28: In a shell and tube heat exchanger,
Q30: A dimensionless number which is the ratio
Q31: Which rays have the least wavelength?<br>A)Ultraviolet<br>B)Cosmic rays<br>C)Irifrared<br>D)X-rays<br>E)Radio
Q32: If a body reflects entire radiation incident
Q33: A high value of Prandtl number indicates<br>A)rapid
Q34: The transfer of heat in case of