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     EduGorilla 
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    Wheat (k = 0.5 W/m-K) is stored on the ground (effectively an adiabatic surface) in 5 m thick layers. Air at 20°C contacts the upper surface of this layer of wheat with h = 3 W/m2–K. The temperature distribution inside this layer is given by,

    where, Ts is the upper surface temperature, T0 is the lower surface temperature, x is measured upwards from the ground, and L is the thickness of the layer. When the temperature of the upper surface is 24°C, then what is the temperature (in °C) of the wheat next to the ground?

    Options :-

    1. 39
    2. 51
    3. 72
    4. 84
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