43. in heat transport, the rate of heat flow doidt s. solid slab is related to the temperature differen ce therea as, do/dt=ka at /l. here k, a and l are the t

43. In heat transport, the rate of heat flow dOIdt s. solid slab is related to the temperature differen ce therea as, dO/dt=KA AT /L. Here K, A and L are the t conductivity, cross-sectional area and thickness o slab, respectively. In an actual experiment, assume the proportional errors in the measurement of heat a rate, each length scale and temperature difference 3%, 1%, and 5%, respectively. What is the maximi proportional error in the measurement of the thermel conductivity? (a) 8% (c) 10% me ta Qum (b) 9% (d) 11% IISc-2007