1.

Both ends of an aluminum rod of length 20 cm and cross-sectional area 4" cm"^(2) are kept at a temperature 0^(@)C. Thermal conductivity of aluminum is 205 W/(m-k). The initial distribution of temperature along the rod can be expressed as T=75sin(15.7x)""^(@)C. Here, length of the rod has been considered to be along the X direction and one of the ends as the origin so that .x. in the initial temperature distribution equation refers to the x position of any point on the rod. Also the angle in the sin term is in radian provided that x is expressed in the SI system Initially the rate of heat flow at any end will be

Answer»

0
96.5 W
124.5 W
32.5 W

Answer :B


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