[MSQ] [GATE-2023: 2M] A very large metal plate of thickness d and thermal conductivity k is cooled by a stream of air at temperature T=300K with a heat transfer coefficient h, as shown in the figure. The centerline temperature of the plate is Tp. In which of the following case(s) can the lumped parameter model be used to study the heat transfer in the metal plate? (a) h=10Wm2K1,k=100Wm1K1,d=1mmTP=350K (b) h=100Wm2K1,k=100Wm1K1,d=1mTp=325K (c) h=100Wm2K1,k=1000Wm1K1,d=1mm,TP=325K (d) h=1000Wm2K1,k=1Wm1K1,d=1mTp=350K