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“Radiation cannot be affected through vacuum or ..
1.
“Radiation cannot be affected through vacuum or space devoid of any matter”. True or false
A.
True
B.
False
Answer» C.
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“Radiation cannot be affected through vacuum or space devoid of any matter”. True or false
Heat is transferred from a hot fluid to a cold one through a plane wall of thickness (δ), surface area (A) and thermal conductivity (k). The thermal resistance is
Let us say thermal conductivity of a wall is governed by the relation k = k0 (1
A composite wall is made of two layers of thickness δ1 and δ2 having thermal conductivities k and 2k and equal surface area normal to the direction of heat flow. The outer surface of composite wall are at 100 degree Celsius and 200 degree Celsius. The minimum surface temperature at the junction is 150 degree Celsius. What will be the ratio of wall thickness?
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