The value of the wavelength for maximum emissive power is given by
A) Stefan law
B) Wein's law
C) Planck's law
D) Kirchhoff's law
E) D'Alembert's rule
Correct Answer:
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Q15: a micron is equal to
A)10-6 metres
B)10-8 metres
C)10-5
Q16: The process of heat transfer during the
Q17: A slab of ice has one-half covered
Q18: In which of the following will the
Q19: A body which transmits all the radiations
Q21: The material preferred for the fabrication of
Q22: Gases have poor
A)Absorptivity
B)Transmissivity
C)Reflectivity
D)Reflectivity + absorptivity
E)Absorptivity + transmissivity
Q23: Which is not the assumption in Fourier's
Q24: Unsteady state of heat flow occurs in
A)Flow
Q25: Which of the following has higher thermal
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